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.
I am not as brave as people who bet big, I only bet with the amount of money I am willing to lose, and when I am in doubt, what I do is cancel my intention to gamble, because I am not able to accept defeat and loss well.
And from what I see, when someone loses, it can usually affect someone's emotions to be a little uncontrollable, which can make the person experience a bigger defeat, which he is not ready to bear. This is something I fear, which could happen to my gambling activities.
Winning and losing in gambling is indeed a common thing, but for some reason when you get a defeat, there is a feeling to return to gambling in order to be able to return what has been lost. And I am trying to fortify that, by choosing to stop gambling for a while when I get a defeat.