Thank you for sharing that story. I always long to read stories like this so that I can learn from your experiences. You are struggling whenever you hold crypto but not with fiat. I think what you need to do is to take a deep sigh first of realization. And then, practice to minimize your crypto gambling activity.
Not stopping but somehow controlling it if you're gambling with crypto. Set aside the feeling whenever you hold it and also keep a certain amount that you will never engage in gambling because the agenda of keeping it is for investment purposes.
if you can't control yourself, you'd better stay away from gambling
The control issue is with crypto but with fiat, he can handle himself. That's hard to imagine that you can somehow control the other way and can't the other side.