There aren't any good choices, so I didn't pick anything for your poll. I have my own criteria, if I want to stop gambling then before I have to win billions of dollars like getting a big jackpot. I can stop gambling whenever I want, but with a special note that I can't convey enough openly here, one of which is the jackpot but there are other things too.
I support you on this, for me to stop doing my gaming and gambling stuff I should have hit multiple jackpots and gotten some billions of dollars in my account and I still have a second thought on a very good reason to stop it. Funny enough even when you win billions you will gamble more.