Leave the game when you feel like the money you have increase a lot already because there’s a possibility that it will be vanished again for the next round on the time you don’t expect. Or leave when you lose repeatedly.
A person must leave the game when his instincts warn him and before every disaster we do get a bad feeling beforehand. Even if someone denies it, then like you said, flee away at the first spot after a guy has accumulated a good profit. Otherwise, there is a possibility to return to the starting point. Begin from zero again!
Your gambling instinc i think will always lead you into bad things ,
As greedy mostly always win over your wise action ,
Just keep in mind that no matter how much you have got profit , withdraw it all immediately ,
Before everything is too late and greedy comes , you need to have a fast action to do that, and leave!