That is what gamblers need to accept. Never be too greedy means if we can win some money, we need to know when to stop and save the money, and not continue playing gambling because we don't know if in the next round we can win or not. It's better to keep the money in our account and withdraw while we can than to play some more. Limiting money and time will prevent addiction because we can stop at the right time, and we know that gambling can make addiction to us.
Once we win in gambling we need to stop for a moment to hold the money so as not to get caught up again in the gambling game because if we win then play gambling again then I think defeat will await him there sometimes we are frustrated what we do and only regret it is better to stop after winning a gamble.
I have experienced this before but now I realize that it is all just lust that wants to continue playing without thinking about the risk of its defeat.