Add Money Menagment strategy to my EA

Good Morning, i have my personal EA that when the indicator find a trend change, close all the operations on that pair and open new one with new trend direction.

i'd like to implement that every time there is a negative position opened, EA doesn't close that position but opens new one on the opposite direction with double lots and close both positions when the sum is 0.

in this moment EA works like this:

• when indicator find a signal, EA opens 2 operations with same lots, the first one close at tp1, the second one at tp2.
  
• If operations hit tp1 but not the tp2, a trailing SL close the second operations in profit.
• If operations can't reach tp1, EA closes both only when indicator find a trend change (that's what i'd like to change).
  

EA has to work as it has done so far except for the third point i wrote. the only thing that has to be changed is that WHEN POSITIONS ARE NEGATIVE AND THEY DIDN'T REACH TP1, EA has to open the next operation with doubles lots and close both operations when the sum is 0. if also the second operation will go in negative and indicator find another trend change, EA has to open a third operations with doubles lots of the second one and close ALL three operations (that being two for each trend change, there are 6 operations in all) when the sum is 0.

Thank you all.