Did my thesis during these years. COVID (and remote) really messed everything in my effort to be organized, eventually I fell into procrastination, mild depression, rabbithole of organization methods, and went to a psychologist (too late I would day). I am like you: doing things alone is hard, I'm glad I'm not living alone. It push me to explore things, but still I feel like an headless chicken running randomly. Doing things in the hurry is fun, though I enjoy moment of calm too.

That said, I think nobody succeed working alone. One need discusaiona, support, structure, eventually money. From your little adventure, I see that (1) you still have motivation to work as a Dev, (2) you're bad at running business, and (3) you like teamwork.

I think give it a new try, in something that deal with emergency maybe, where you have a manager that hopefully can manage you well. It's not a start from zero, it's a start with more information about yourself and are valuable for your future manager. Knowing your limits and yourself is a valuable skill. Also go to see a therapist, you might find something too, as I did.