I think writing for a general audience is difficult these days. I'm planning to do technical writing. If you want to become a general writer, why don't you attend writing workshops online? I know Esme Wang the author of "The Collected Schizophrenias" has workshops online. Sometimes, she gives scholarships. She also has schizophrenia. This is her workshop site:
Shop - Esme Weijun Wang I don't know your diagnosis but maybe she can help you get started. I have been following her on Instagram. She is prolific and successful as a writer. Best wishes!