I stop when I notice that on the day I played I almost lose my budget for gambling meaning I lose more than I win. Even though I still have a chance of winning because I still have a budget, I will still stop coz I am thinking that losing on the game on that day is already the sign for me that I am not lucky enough to win amd maybe I lose all my money
Well I guess your are not one of those gamler who love to chase losses or maybe gambling for you is for fun and winning is not really a top priority regardless you lose or win you will only use the allocated money for that day. I hope to see more gambler like you though its very impossible to happen because gambling is really addictive.
The only way when you know it is time to stop is if you have already placed a limit for yourself in the first place which is what most gamblers do not always do and one of the reasons why they end up flopping so bad that they lose everything. Once you know luck is not on your side for the day, and you have been able to gamble enough of what you intend to gamble with, then that is it.
No going further or having a rethink to want to go back and see how to win what is already gone.