Quitting a game is indeed very hard for most gamblers as they tried to aim for more winnings, and usually end up screwing all their bankroll. Hence, it is always best to stick to your budget and call it a day if you believe you are already on your limits.
That's the best thing to do, if you allocate such amount of money it's better to let that go when your budget already done, it's not good to follow those paths of gamblers who try to push forward and lose more, thinking that they've got good strategy that theyll follow and lose more instead of keeping it cool when you lose, just leave the house and call for the day.
What is always a big problem that is difficult for most gamblers to do is "letting go", I understand that losing money is an undesirable situation, but remember that this is gambling which is an activity that leads to one of two possibilities at the end of the session between winning and losing, and I think everyone already knows that gambling is a risky activity, meaning that losing is a part that can never be separated from gambling.
This means that I believe that by having the right understanding, letting go and letting go of something that has been lost should not be something that is too difficult to do, understand that self-acceptance regarding risk is the main part that must be owned and always prepared by gamblers.