Need help in money management code

Happy new year everybody

i need help in Need help in money management code as follow:

1- the risk should be 10%.
2- when the expert make profit:
no. of lots don't be less than the previous order even risk increase

example:

if the current order is 4 lots:
then if it win then it will advance to high no of lots and that's what happen.
else if it lose: then it is supposed to open order with less lots number " say 3 for example " and i don't want that.

what i want in this case is to continue with the same number of lots " means 4 lots not 3 as in my example "


can you do that plz.

thank you very much

i am still looking for help