Well, we are all only human. So as hard as we try we will make mistakes and those mistakes will result in damages, whether financial, psychological, physical or other.
so there is not much we can do about it.

But one thing you can do to minimize gambling mistakes is to go in with a plan and a healthy dose of self-discipline.

For example: I make a budget and a rule about the maximum amount I plan or winning or losing. And if that limit is reached, I stop. I do not go over budget and I make sure the budget does not break me.

Most people gamble without a plan and start losing random amounts of money and never stop even if they are winning.