I am not some expert at writing. I just started to respond to writing prompts, and people liked them, then I played Factorio for too long so I wrote a book inspired by it, and now I’m an author full time.
It takes time to go there. But you won’t make any progress if you don’t make art and share it. You’ll get better with time. You’ll get more fans with time. You’ll probably suck at first! I know I did, my first finished story 5 years ago is baaaad. But I didn’t stop, and you shouldn’t either.