I feel you. It;s natural to feel disappointed after a loss. I actually sometimes ask the same question on myself when I feel frustrated about the result of the game I didnt expect to come out as expected. Which later made me realize that wins and losses are part of the game. And in order for me to not feel the same thing again, I just set a budget, gambling with what I can afford to lose.
Winning and losing are part of the game, but going all in is foolishness, if people really understand that winning and losing are part of the game why are they going all in on a game? Losing all that money is just in the next corner waiting.
I can never be this desperate about gambling, where all I can do is risk all my money for one result, I know that people do this and they get positive results but that's not just me, it can never be.
Let's handle gambling like gambling, by not becoming so desperate to win, this is not a sports race where you handle the steering yourself, this is not a kickboxing ring where you have to fight yourself, the power isn't in your control, and people can't see how dangerous this can be?