For me the reason is simple, they don't manage their emotions and they don't have control over their money, I'm bad at controlling emotions, but I developed my strategy to control emotions within the money plane, and it's simple, only use the money that you are willing to lose , if you do that, you're all set, there's no need to worry about anything, you just have to have the discipline to be able to accomplish the things we set out to do, follow the plan and know how to say no to ourselves, so as not to continue risking and losing money, for me the key is there, of course it's also in continuing to learn every day.