Do you mean stopping here and not start at all? Or at certain times or at certain moments of loss / gain, to leave that moment and play again later? It seems to me that it's not that hard to do the first one. As a result, you do not go to the casino, do not log on to the website, you go to different entertainment areas and somehow you can stay away from gambling completely.
But when you're at the gambling table / game, it's a very difficult decision to withdraw from the table, saying that it's all that's enough when the full win / loss is at its peak. I think people who can do it can do anything in their lives.