That's true, I think most of us made mistakes in gambling like we loss control and loss an amount of money that are not suppose to be risk in gambling. It's okay to make mistake, we don't have to blame ourselves all the time, all we do is just move on and learn from it. Personally, I don't easily learn from my mistakes, I don't know but I made mistakes multiple times until I learn how to be a discipline gambler.
It's all about how we manage our emotion as even if our mind would say that this is what we should do, but once we challenge especially if we experience like a losing, that is when we get to aggressive and forget the game plan, so we should keep learning if we keep making mistakes until we finally control ourselves.
You are not the only one on this, I have made the same mistakes countless times most people might even consider that to be stupidity because doing the same thing over and over again expecting a different result is insanity, but in all of that we are supposed to learn and grow...i think it's better to make these mistakes while you are still young and not having a lot of responsibilities so you can know the right steps to take in the future because imagine being a bread winner of the family and you keep throwing all your money In gambling without paying your childrens fees or taking care of your wife, it would be terrible