If your longest losing streak at x2 is just 12 I can only conclude you don't have many rolls behind! Or there's one more option, you keep your sessions timed (you play just from time to time, maybe you even play a specific number of rolls every time)!

I am not sure how 20 sats can become 16k sats with x2 bet, or maybe I don't get the whole picture!? What exactly did you hit?

Basically, I tried many strategies... and when I say I tried them it means sessions with +200k rolls. From strategies with chasing lower payouts (under x2... x1.1, x1.5...) to the ones with higher payouts (over x2... to x9k or over if we include crash/limbo)!

I raged many times... and sometimes I got busted, sometimes I get lucky! It's gambling... and after all, it's martingale (all some form of martingale)... if you don't rage and raise your bets you will not be able to recover what you lost and for sure you will not make any profit!