We don't have to continue gambling if we already wins and remember to cash out the wins money before our minds changes. We can enjoy the win money when we can withdraw and forgets to playing gambling for a while.
We can come back to casino anytime we want so there is no rush to come back to the casino. But yes, if we place a bet for the last game, that will give us more tension because we hope that the last bet will give the win.
Basically I will say that the real victory in gambling is when you are able to cash out the amount of winnings into physical money and enjoy it, meaning if the amount of winnings is still in the form of a balance in the account then I cannot say that it is a real victory, because often there are cases where most gamblers lose all the winnings because they are unable to resist the temptation of greed in themselves, so don't be happy first if you win unless you have managed to pass the temptation phase of greed.
Maintaining awareness and having good and firm self-control is one of the keys to being able to enjoy the amount of victory, and for the last bet problem, of course it will be much more tense, and I think for that problem it depends on the decision of a gambler, if you are not ready to accept all the unwanted possibilities at the end of the session then it is better to cash everything from the start.