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.
That seem to be a goal for you that I don't have. However, the same as you, I'll also stop whenever I want if there is a reason or I just want to stop even if there's no reason.
But I won't come up to the point of thinking of hitting a billion dollar jackpot or even a million. I'll just go with the flow if I want to and open with stopping completely or continuing if it's necessary.