That's how it should be. If you're in profit, be contented so just quit. However, not all gamblers are able to do this because of their greed to gain more. The reason why it's much easier to stop once your bankroll is slowly decreasing. Because that's the time you'll feel a regret for losing your money in gambling instead of spending it into other things. Thus, it is likely you will save what's left before it's too late.
Quiting is one of the most difficult decisions we could take as gamblers because there is a spirit that always tell us that the next bet would be a win making us to keep gambling without the knowledge that the next bet might not be a win. Gamblers are facing so many challenges and if one does not have discipline then we will be surprised that we shall keep betting even when we are losing. It is very good we understand the kind of person that we are to do that we don't keep making the same mistakes again. There were times my spirit used to tell me to quit gambling even when I am winning as I do see it as a true sign to leave gambling alone.
Yes, that's what always happens and is done by most gamblers, especially those who are addicted, their biggest mistake is always feeling that a bigger win is within reach or is close so that's what drives them to continue in order to achieve a much bigger win. However, if we talk in the context of gambling, the actual reality in any situation is that gambling will always be an activity that has two possibilities at the end of the session, either winning or losing, and there is no connection between the next result and the previous result.
What this means is that, for example, if you previously managed to win, that doesn't mean you will win again with a larger amount in the next session when you continue. Therefore, this is why we always tell anyone, especially the gamblers we know, that it is better to focus on preventive measures instead of continuing to think about winning, because after all, the victory that you always imagine is nothing more than a hallucination, meaning it is not based on any certainty. . So one of the reasons why stopping is always a difficult action to do is because they don't have a true understanding of what the concept of gambling really is.