Self-Rejection, Self-Sacrifice, Self-Denial VS Egoism, Earthly Pleasures, Hedonism

[Ahriman]

I always quit doing something when I realize I can't make money doing it....happened when I tried to learn how to draw, play guitar, play basketball, etc.

They can make money, it’s just that only the top level pros or at least an advanced level do those things.
For drawing self-promote commissions or print & sell copies of artworks, for guitar perform in a band on top of the practice, for basketball just train to a high level and play frequently, unless your innate abilities make it impossible to do so.

Is your self-pleasure intrinsically tied to how much money you can make? You can’t enjoy just doing hobbies for the sake of doing them even without the money?

Honestly no, I don't think so. I don't have hobbies anymore, for that reason.