In my own opinion, I also believe that when we do the right thing in gambling, the results will definitely be good, so if we know that we have won many times, we must always learn to have so-called self-control and self-discipline.
If a gambler has won, he truly need to stop gambling, if I am the person, I will not even have it in mind to continue gambling, I will stop immediately I win. But many people see it more interesting and they will continue to gamble until they lose.
But also if a gambler do not even win at the first bet, he supposed not to continue to gamble, a single loss is a way to more losses as the person will want to win back his lost funds, but which it supposed not to be as the person is at the time more vulnerable to losses.
What happens is that when people are winning they think themselves as being lucky that day and they do not want that luck to run out, I know it does not make sense as luck cannot possibly run out but that is the way they think, so they keep gambling trying to obtain more profits.
But as you may guess at some point they are not as lucky anymore and they begin to lose money, that would be a good moment to stop and call it a day, but then people do not want to stop at that point as now they feel they have lost money, even if in their accounts there is more money than when they began their session, this pushes them to keep gambling and eventually to have a losing session despite having such a promising start.