Leave the game on winning, it is too good, less-then we feel comfort because in gambling every ending is finish in lose. But should keep on mind, if we are not win in bet, then doesn't mean to continue it, at least whenever we do not win. In every first bet when we win than its mean stop on the time and enjoy with your winning money, and on the other hand if we lose in the bet, than it also mean leave the game, and play again in the next day with a new day with a new hope.
if we play with big amounts it doesn't matter to stop right away but what about if we play on small amount we only can keep it in our wallet and play again in another time, the best time to stop is when you already feel satisfied but unfortunately to get that feeling was very hard due our lust of getting more and more.