Yup, we're careless when we're winning.
That's like an ego setter as well for we think that we'll never lose or it's okay to lose because we've won already. But we're too vulnerable with our emotions when we're like that.
Yes, when we win, our ego will increase and if we cannot suppress it, we will continue gambling and that's where our losses will increase. So we have to be able to control our increasing emotions. Stopping gambling and leaving the casino can reduce our emotions, especially if we can immediately rest or do other activities that divert thoughts about gambling and ego from continuing to gamble.
Among the many interviews I have watched with gamblers who have recovered from addiction, there is a common feature - they say that the danger of starting to play again remains with them for life. It's like a stigma that always stays with you, and you can't get rid of it - you feel that you have to control yourself, and you need to avoid all kinds of gambling. In no case can you even play on a demo account, this is one of the rules of self-control. It is believed that a demo account is one step towards starting to play for real money again. Of course, it is much easier to control yourself if there are native people nearby.
It is true that they say that the danger of starting to play again is with them all their lives. But they must have learned how to handle it well so they won't go back to gambling again. And when they can control themselves and have more activities, they are unlikely to return to gambling and as long as they can take care of themselves, it will be fine. And if necessary, they must be able to completely stay away from all things related to gambling, not even playing using a demo account. With the help of people around him who love him, he can help him stay away from gambling.