As the questions says, when do you stop? your point of no return?
a. at least double your money, then stop
b. you only stop when you have lost all your bankroll money and then blame the casino?
c. or you are a superstitions gambler, when you have signs like losing 3 straight in a row, then you quit because you know that you're having a bad luck
d. you stop when you are at least break even
I didn't include chasing your losses as obviously you might to continue.
Well, it is difficult to make any commitment when it comes to gambling. Of course, it comes with some trials and attempts. If I'm going to say that I stopped gambling after winning the jackpot, it doesn't mean I can completely forget gambling anymore. Because, whether we like it or not, it was difficult for a gambler to stop his gambling habit, especially once given the chance to win big.
Assuming I win, maybe the least I could do is to decrease my gambling budget. I believe there is a gradual change, and it can be possible (for me).