Sometimes you play and you win and you continue until you deplete you earnings. If you have self control you might stop before it’s all gone. When is the best time to stop?

First have a set bankroll you are willing to loose.  Never go over that limit.
stop after you reach your goal. set a goal, and have the courage to reach it, the worse that can happen is you loose your bankroll.  However, you were willing to loose that any way….....................