Yes, sometimes gamblers express their emotions by being more daring to bet with a lot of money, but there are also those gamblers who consistently maintain their emotions because they know that the results of gambling cannot be easily guessed and the profits are very difficult to obtain.
You are absolutely right, it is very difficult to contain Yourself in a full game , in fact there are times when people forget the value of money when they bet it , because they are so into the game that they see it as if it were a simple piece of paper, then we must see these things, analyze them and find the best way to control ourselves, so far what I recommend about spending only the money that you are Willing to lose has worked for me , not only in gambling, also in Trading , but I have not seen another strategy that is as Effective.