-If you stay too long you lose.

First of all because concentration is not infinite even though you don’t perceive it and continue to feel strong; second because the other players, even unconsciously, start knowing your play. Don’t hope for winning streaks to go on and on, don’t stretch your luck.
Take your profit and get out even though you can’t see the peak of the mountain you are climbing. Sometimes even only a further hand may be very dangerous.
A question arises at this point.
When getting out?
Our modest advice is:

-Decide in advance what are your upper and lower thresholds (i.e. a fixed budget) or playing time period (or/and the number of hands to play) and when you reach your limit get out.

One thing you should use is the 30 bet rule: “Don’t ever go off for more than 30 big bets in a poker game!“
Until you have played a lot of hours it is difficult for you to judge your level of skill compared to the other players at your table.
One thing the 30 bet rule does for you is limit your losses in games where you might be the sucker. Until you are able to accurately judge how you play compared to others in your game, loss limiting with the 30 bet rule effectively stops you from dumping off large sums of money in games you may not be able to beat. This is always a good strategy for bankroll health!
Even if you have enough experience and table hours to judge whether you are good, better or worse than the game you have chosen, loss limiting is still a good strategy. When we are losing it is difficult to accurately judge exactly how much losing affects our play. Even great champions will often be in a game they could generally beat soundly but because they are losing. They become a dog to the game and don’t realize it. When you are losing, your table image erodes and table image is very important to how much money you can take out of a game.