I already tried to play with martingale but to be honest i don't gain profit instead i lose them all i tried to follow and also analyze the game after making the 6 straight lose trying to cool on betting to see your friend that you didn't give up on betting after loosing my bankroll i never tried playing with martingale im much more better to follow what i want in betting.
If you are having a bigger balance then you should win if you are playing according to your bank roll. I used to play martingale with a good balance and i am never in a loss because all my calculations are up to the point so that i do not bust even if hit 17 reds in 2x and if i hit the 17 red points i will still recover but my profit will take a hit.