Optimization

 
Hellow  i know how to do optimization visual on mt5  its actually very easy  but what i find difficult is to to do the classic optimization  i need someone to tell me the best way to optimize an EA  rather than the nomal  optimization
for example  the modeling type  some people do it on 1 min ohlc  and that tends to give false optimization,,again  i find it  optimization on  one month gives bad results on one year  backtest    and 1 year optimization give bad  backtest on one month then the question is how do we do  optimization on  reflect    consistent results on  month to month  if we were to do one year whether result is positive or negative say  but atlease we can see month to month how the results were.
 

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