I stop playing after I double my money to resist the temptation and not lose all the money.
Its good because if you play again there is a possibility that it may lose then you play again to have profit if lose you have nothing left at all .Sfter doubling or tripling the profit it is enough not to push your luck to crash.
But most of the addicted gamblers they can't control themselves even after doubling or more they will surely come back to gambling with that winnings and lose back to the site. Unless they just take out that money and come back only after few days with the smaller amount then they can save some money. It all depends on how one is addicted to these games.
It's necessary to start educating themselves by the experiences in game. When the gamblers see they are losing too much money because their greedy, they must change their minds about the game. They need to start thinking: I'm losing too much money irresponsibly, the profit can be bigger if I stop being greedy. They can start doing this by playing only with their profit made after some time playing. To play with profit worth much more and helps you to control your greediness.
What is only important is to have a game plan and a goal, your game plan must be followed when gambling and when you were able to follow that successfully, that means you are a discipline gambling. Not necessarily it is only done when winning but also we need to follow it to minimize our loses when we are in the situation where we bad luck is inevitable.