I tried a lot and found an optimization table of 15 years.
My EA can be set at 7%, 10%, or up to 15% per month.
But I found out that 3% per month is a static return. No matter how good an EA is, nothing lasts more than 1-5 years.
But I solved everything.
My EA has a Stop Loss value and I see a very good and stable return of over 3% per month.
Withdrawal every month is good, but if you want compound interest, even if you don't withdraw, my EA is perfect.
I will continue with the 15% profit share for the time being.