The fear of losing money will cause regret when you win a bet. In my opinion, it is just an illusion that crosses someone's mind because they are unable to bear the loss when they lose. In fact, if he was able to think objectively, winning and losing are part of gambling, maybe this small win would not have happened.
If you have that kind of emotion it's better to stay away, gambling always carried risk and if you can handle that kind of pressure then it's always a regret either you win or you lose you always have that kind of reaction that may triggered you to push foraward, and since fear is in you there's hesitation and regrets that cause of any decision making that you'll going to take. All in your own action as fear always carry that hesitation that cause mostly to lose your money.
Yes, for those who cannot bear the stress or the pain of losing money, the temptation of gambling is extremely risky. The most important thing in gambling is "a certain amount". Gamblers get stuck in two ways in gambling addiction, firstly, gambling on emotion after losing money, and secondly, becoming confident after winning a game, and thinking that if they play the next game the same way, they will win again. In this way, gamblers cannot quit gambling. In fact, such people must first be responsible, because they easily lose their self-control, and gamble with more money than they can afford. And this is why they suffer more losses.
I agree to that, once a gambler experienced decent amount of profits they become confident and thinks that they can easily repeat the outcome thinking that they already got the perfect strategy to keep winning, but the reality, casino is a business and the developers and the owners are well-prepared they just doing it to give the gambler that experienced for them to keep coming back, and most of the time they always manage to allure those gamblers to keep coming back.