hobbies are pointless because there’s just no improvement past certain point anyway
This is false for two reasons. One, "hobbies" aren't just for improvement. They're for fun, to express yourself and make something you find valuable. And two, there is improvement if you tackle increasing challenges.
I guess I'm lucky because I'm obsessed with my personal projects. They give my life structure. I'm not getting any interviews, not making any money, but I'm motivated every day by the ambitious projects I work on.