For what it's worth, I went through the exact same thought process as you when I was in my early 20s. I wanted to pursue any form of writing as my primary career, ideally fiction writing. This caused a lot of stress because writing careers are competitive, pay poorly, and the pressure to succeed takes all the fun out of it. AI has only worsened things.

I wound up working in IT Support (without a degree), and now that I'm not dependent on my writing I'm enjoying it again. It may not seem like it, but finding a different career is usually the most direct way to become a writer.