I plan even before i start to gamble that when i will stop,it can be either reaching a specific target or i can be the minimum amount which i need to save after some losses.But i can tell you its really hard to follow when i started to gambling,but i make up my mind hard to follow this.
ye to me also when i reach to the fixed limit then i realize that now the time is to stop gambling any more. i have fixed my gambling limit to a point and when i reach to that limit i try not to play gambling any more. it really help me in minimizing my risk of loosing money.