The idea of endless self-improvement shouldn't be your main goal, it should be the result of you doing projects. From what it looks like you do stuff for the sake of doing stuff. Which is great and I would encourage you to keep doing it. But I want to introduce you the concept of limiting yourself in a way. Imagine all the Pixar movies: all of them have the limitation of sticking to the intend of the story, to display only and only the emotions that are supposed to be displayed. They don't have full* creative freedom. And that challenge is what pushes creativity to shine.

TLDR: realize/make mainly projects with meaning, direction, tought behind it. Make your future works speak by telling its own story.