Write every day. So no to other things in order to write.
Share what you write on here and everywhere else. Publish on a blog or a Substack, share links to your work. Don't heed the feedback all that much—good or bad. You know what's in you. Work the muscle of putting it in front of people.
Go to a public library and volunteer to start a writing workshop for an underserved group, like people facing homelessness. Write with them when they write.