lot increase every time I lose the last position MQL5

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really i need some help i have this code and i want that every time i lose a position i increase the lots by 1.8, even though my doesn't show any error but the function doesn't work thanks in advance for the help 
#property copyright   "Copyright 2009-2013, MetaQuotes Software Corp."
#property link        "http://www.mql5.com"
#property version     "5.20"

#include <Trade\Trade.mqh>
#include <Trade\SymbolInfo.mqh>
#include <Trade\PositionInfo.mqh>
#include <Trade\AccountInfo.mqh>
//---
input double InpLots          =0.1; // Lots
int    InpMACDOpenLevel =3;   // MACD open level (in pips)
int    InpMACDCloseLevel=2;   // MACD close level (in pips)
int    InpMATrendPeriod =26;  // MA trend period


// Variables globales pour le suivi
double currentLotSize;
bool lastTradeLost = false;

// Paramètres pour le MACD
input int MACD_FastEMA = 12;
input int MACD_SlowEMA = 26;
input int MACD_SignalSMA = 9;

input bool     MM                = false;    // Money Management
CDealInfo      m_deal;                       // deals object
CSymbolInfo    m_symbol;                     // symbol info object

//---
int ExtTimeOut=10; // time out in seconds between trade operations
//+------------------------------------------------------------------+
//| MACD Sample expert class                                         |
//+------------------------------------------------------------------+
class CSampleExpert
  {
protected:
   double            m_adjusted_point;             // point value adjusted for 3 or 5 points
   CTrade            m_trade;                      // trading object
   CSymbolInfo       m_symbol;                     // symbol info object
   CPositionInfo     m_position;                   // trade position object
   CAccountInfo      m_account;                    // account info wrapper
   //--- indicators
   int               m_handle_macd;                // MACD indicator handle
   int               m_handle_ema;                 // moving average indicator handle
   //--- indicator buffers
   double            m_buff_MACD_main[];           // MACD indicator main buffer
   double            m_buff_MACD_signal[];         // MACD indicator signal buffer
   double            m_buff_EMA[];                 // EMA indicator buffer
   //--- indicator data for processing
   double            m_macd_current;
   double            m_macd_previous;
   double            m_signal_current;
   double            m_signal_previous;
   double            m_ema_current;
   double            m_ema_previous;
   //---
   double            m_macd_open_level;
   double            m_macd_close_level;
   double            m_traling_stop;
   double            m_take_profit;

public:
                     CSampleExpert(void);
                    ~CSampleExpert(void);
   bool              Init(void);
   void              Deinit(void);
   bool              Processing(void);

protected:
   bool              InitCheckParameters(const int digits_adjust);
   bool              InitIndicators(void);
   bool              LongClosed(void);
   bool              ShortClosed(void);
   bool              LongOpened(void);
   bool              ShortOpened(void);
   double            LotsOptimized(void);
  };
//--- global expert
CSampleExpert ExtExpert;
//+------------------------------------------------------------------+
//| Constructor                                                      |
//+------------------------------------------------------------------+
CSampleExpert::CSampleExpert(void) : m_adjusted_point(0),
                                     m_handle_macd(INVALID_HANDLE),
                                     m_handle_ema(INVALID_HANDLE),
                                     m_macd_current(0),
                                     m_macd_previous(0),
                                     m_signal_current(0),
                                     m_signal_previous(0),
                                     m_ema_current(0),
                                     m_ema_previous(0),
                                     m_macd_open_level(0),
                                     m_macd_close_level(0),
                                     m_traling_stop(0),
                                     m_take_profit(0)
  {
   ArraySetAsSeries(m_buff_MACD_main,true);
   ArraySetAsSeries(m_buff_MACD_signal,true);
   ArraySetAsSeries(m_buff_EMA,true);
  }
//+------------------------------------------------------------------+
//| Destructor                                                       |
//+------------------------------------------------------------------+
CSampleExpert::~CSampleExpert(void)
  {
  }
//+------------------------------------------------------------------+
//| Initialization and checking for input parameters                 |
//+------------------------------------------------------------------+
bool CSampleExpert::Init(void)
  {
//--- initialize common information
   m_symbol.Name(Symbol());              // symbol
   m_trade.SetExpertMagicNumber(12345);  // magic
//--- tuning for 3 or 5 digits
   int digits_adjust=1;
   if(m_symbol.Digits()==3 || m_symbol.Digits()==5)
      digits_adjust=10;
   m_adjusted_point=m_symbol.Point()*digits_adjust;
//--- set default deviation for trading in adjusted points
   m_macd_open_level =InpMACDOpenLevel*m_adjusted_point;
   m_macd_close_level=InpMACDCloseLevel*m_adjusted_point;
//--- set default deviation for trading in adjusted points
   m_trade.SetDeviationInPoints(3*digits_adjust);
//---
   if(!InitCheckParameters(digits_adjust))
      return(false);
   if(!InitIndicators())
      return(false);
//--- succeed
   return(true);
  }
//+------------------------------------------------------------------+
//| Checking for input parameters                                    |
//+------------------------------------------------------------------+
bool CSampleExpert::InitCheckParameters(const int digits_adjust)
  {
//--- initial data checks
//--- check for right lots amount
   if(InpLots<m_symbol.LotsMin() || InpLots>m_symbol.LotsMax())
     {
      printf("Lots amount must be in the range from %f to %f",m_symbol.LotsMin(),m_symbol.LotsMax());
      return(false);
     }
   if(MathAbs(InpLots/m_symbol.LotsStep()-MathRound(InpLots/m_symbol.LotsStep()))>1.0E-10)
     {
      printf("Lots amount is not corresponding with lot step %f",m_symbol.LotsStep());
      return(false);
     }
//--- succeed
   return(true);
  }
  
int x()
  {
   int X;
   X = (iClose("USDCAD",PERIOD_H2,0)*iClose("USDJPY",PERIOD_H2,0))/(iClose("SP500",PERIOD_H2,0)*iClose("EURUSD",PERIOD_H2,0));
   return(0);
  }
//+------------------------------------------------------------------+
//| Initialization of the indicators                                 |
//+------------------------------------------------------------------+
bool CSampleExpert::InitIndicators(void)
  {
//--- create MACD indicator
   if(m_handle_macd==INVALID_HANDLE)
      if((m_handle_macd=iMACD(NULL,0,MACD_FastEMA,MACD_SlowEMA,MACD_SignalSMA,x()))==INVALID_HANDLE)
        {
         printf("Error creating MACD indicator");
         return(false);
        }
//--- create EMA indicator and add it to collection
   if(m_handle_ema==INVALID_HANDLE)
      if((m_handle_ema=iMA(NULL,0,InpMATrendPeriod,0,MODE_EMA,x()))==INVALID_HANDLE)
        {
         printf("Error creating EMA indicator");
         return(false);
        }
//--- succeed
   return(true);
  }
//+------------------------------------------------------------------+
//| Check for long position closing                                  |
//+------------------------------------------------------------------+
bool CSampleExpert::LongClosed(void)
  {
   bool res=false;
//--- should it be closed?
   if(m_macd_current>0 && m_macd_previous < 0)
      if(m_macd_current>0 && m_macd_previous < 0)
         if(m_macd_current>0 && m_macd_previous < 0)
           {
            //--- close position
            if(m_trade.PositionClose(Symbol()))
               printf("Long position by %s to be closed",Symbol());
            else
               printf("Error closing position by %s : '%s'",Symbol(),m_trade.ResultComment());
            //--- processed and cannot be modified
            res=true;
           }
//--- result
   return(res);
  }
//+------------------------------------------------------------------+
//| Check for short position closing                                 |
//+------------------------------------------------------------------+
bool CSampleExpert::ShortClosed(void)
  {
   bool res=false;
//--- should it be closed?
   if(m_macd_current<0 && m_macd_previous > 0 )
      if(m_macd_current<0 && m_macd_previous > 0 )
         if(m_macd_current<0 && m_macd_previous > 0)
           {
            //--- close position
            if(m_trade.PositionClose(Symbol()))
               printf("Short position by %s to be closed",Symbol());
            else
               printf("Error closing position by %s : '%s'",Symbol(),m_trade.ResultComment());
            //--- processed and cannot be modified
            res=true;
           }
//--- result
   return(res);
  }


double CSampleExpert::LotsOptimized(void)
  {
   return(currentLotSize);
  }

//+------------------------------------------------------------------+
//| Check for long position opening                                  |
//+------------------------------------------------------------------+
bool CSampleExpert::LongOpened(void)
  {
   bool res=false;
//--- check for long position (BUY) possibility
   if(m_macd_current<0)
      if(m_macd_current<0)
         if(m_macd_current<0)
           {
            double price=m_symbol.Ask();
            //double tp   =m_symbol.Bid()+m_take_profit;
            //--- check for free money
            if(m_account.FreeMarginCheck(Symbol(),ORDER_TYPE_BUY,currentLotSize,price)<0.0)
               printf("We have no money. Free Margin = %f",m_account.FreeMargin());
            else
              {
               //--- open position
               if(m_trade.PositionOpen(Symbol(),ORDER_TYPE_BUY,currentLotSize,price,0.0,0))
                  printf("Position by %s to be opened",Symbol());
               else
                 {
                  printf("Error opening BUY position by %s : '%s'",Symbol(),m_trade.ResultComment());
                  printf("Open parameters : price=%f,TP=%f",price);
                 }
              }
            //--- in any case we must exit from expert
            res=true;
           }
//--- result
   return(res);
  }
//+------------------------------------------------------------------+
//| Check for short position opening                                 |
//+------------------------------------------------------------------+
bool CSampleExpert::ShortOpened(void)
  {
   bool res=false;
//--- check for short position (SELL) possibility
   if(m_macd_current>0)
      if(m_macd_current>0)
         if(m_macd_current>0)
           {
            double price=m_symbol.Bid();
            double tp   =m_symbol.Ask()-m_take_profit;
            //--- check for free money
            if(m_account.FreeMarginCheck(Symbol(),ORDER_TYPE_SELL,currentLotSize,price)<0.0)
               printf("We have no money. Free Margin = %f",m_account.FreeMargin());
            else
              {
               //--- open position
               if(m_trade.PositionOpen(Symbol(),ORDER_TYPE_SELL,currentLotSize,price,0.0,0))
                  printf("Position by %s to be opened",Symbol());
               else
                 {
                  printf("Error opening SELL position by %s : '%s'",Symbol(),m_trade.ResultComment());
                  printf("Open parameters : price=%f,TP=%f",price,tp);
                 }
              }
            //--- in any case we must exit from expert
            res=true;
           }
//--- result
   return(res);
  }
//+------------------------------------------------------------------+
//| main function returns true if any position processed             |
//+------------------------------------------------------------------+
bool CSampleExpert::Processing(void)
  {
//--- refresh rates
   if(!m_symbol.RefreshRates())
      return(false);
//--- refresh indicators
   if(BarsCalculated(m_handle_macd)<2 || BarsCalculated(m_handle_ema)<2)
      return(false);
   if(CopyBuffer(m_handle_macd,0,0,2,m_buff_MACD_main)  !=2 ||
      CopyBuffer(m_handle_macd,1,0,2,m_buff_MACD_signal)!=2 ||
      CopyBuffer(m_handle_ema,0,0,2,m_buff_EMA)         !=2)
      return(false);
//   m_indicators.Refresh();
//--- to simplify the coding and speed up access
//--- data are put into internal variables
   m_macd_current   =m_buff_MACD_main[0];
   m_macd_previous  =m_buff_MACD_main[1];
   m_signal_current =m_buff_MACD_signal[0];
   m_signal_previous=m_buff_MACD_signal[1];
   m_ema_current    =m_buff_EMA[0];
   m_ema_previous   =m_buff_EMA[1];
//--- it is important to enter the market correctly, 
//--- but it is more important to exit it correctly...   
//--- first check if position exists - try to select it
   if(m_position.Select(Symbol()))
     {
      if(m_position.PositionType()==POSITION_TYPE_BUY)
        {
         //--- try to close or modify long position
         if(LongClosed())
            return(true);
        }
      else
        {
         //--- try to close or modify short position
         if(ShortClosed())
            return(true);
        }
     }
//--- no opened position identified
   else
     {
      //--- check for long position (BUY) possibility
      if(LongOpened())
         return(true);
      //--- check for short position (SELL) possibility
      if(ShortOpened())
         return(true);
     }
//--- exit without position processing
   return(false);
  }
//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit(void)
  {
     // Initialiser la taille du lot
   currentLotSize = InpLots;
   
   // Vérifier la dernière position perdante pour ajuster la taille du lot
   CheckLastTrade();
//--- create all necessary objects
   if(!ExtExpert.Init())
      return(INIT_FAILED);
//--- secceed
   return(INIT_SUCCEEDED);
  }
  
input uchar    InpN        = 3;  // N
input datetime InpFromDate = 0;  // From Date (D'1970.01.01 00:00' -> OFF parameter)
input string   InpSymbol   = ""; // Symbol ("" -> all symbols)
input long     InpMagic    = -1; // Magic number (<0 -> all magics)
datetime m_from_date       = 0;

void CheckLastTrade()
  {
   // Vérifiez s'il existe des positions fermées
   if (HistoryDealsTotal() > 0)
     {
      ulong lastDealTicket = HistoryDealGetTicket(HistoryDealsTotal() - 1);
      
      // Si le dernier trade est une position fermée
      if (HistoryDealGetInteger(lastDealTicket, DEAL_ENTRY) == DEAL_ENTRY_OUT)
        {
         double lastProfit = HistoryDealGetDouble(lastDealTicket, DEAL_PROFIT);
         
         // Si le dernier trade a été perdant
         if (lastProfit < 0)
           {
            lastTradeLost = true;
            currentLotSize += m_symbol.LotsStep(); // Augmenter la taille du lot de 1 step
           }
         else
           {
            lastTradeLost = false;
            currentLotSize = InpLots; // Réinitialiser la taille du lot
           }
        }
     }
  }
//+------------------------------------------------------------------+
//| Expert new tick handling function                                |
//+------------------------------------------------------------------+
void OnTick(void)
  {
   static datetime limit_time=0; // last trade processing time + timeout
//--- don't process if timeout
   if(TimeCurrent()>=limit_time)
     {
      //--- check for data
      if(Bars(Symbol(),Period())>2*InpMATrendPeriod)
        {
         //--- change limit time by timeout in seconds if processed
         if(ExtExpert.Processing())
            limit_time=TimeCurrent()+ExtTimeOut;
        }
     }
    
  }
//+------------------------------------------------------------------+
 

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