I want soeone to help me add a martingale to my expert adviser, that when a loosing trade loose the next lot calculated should double the old risk amount.

i want soeone to help me add a martingale to my expert adviser, that when a loosing trade loose the next lot calculated should double the old risk amount.

it has two input, fixed amount per trade e.g $50 risk per trade and

fixed lot size e.g 0.01 on every trade

if i mark fixed amount = true and martingale true then when ever a trade loose and the old amount loose is 50$ it multiply by 2, so new risk is 100$ and if this one loose again you multiply by 2 that makes 200$ and so on till it will and restart back at $50

if i mark fixed amount = false and martingale true then when old trade loose with maybe fixed lot size 0.1 next trade will be 0.1 multiply by 2 which will be 0.2 and if this loose the next will be 0.4 and so on till it win then it return back to 0.1 lot size