It depends on my mood. Sometimes I can gamble for quite a long time if the gambling is profitable. However, I'm still prepared to lose everything I have, including my initial investment. However, sometimes, even if I set a time limit of no more than an hour, even though the gambling might still be profitable, I still end it by withdrawing the profits.
I realize that gambling for too long isn't a good thing, and for those who can't control themselves, it can be a dangerous problem.