Full disclaimer: I believe that so much that (as a fellow beginner writer) I created a “newsletter” platform more suited for fiction writers to slowly form an audience of readers owning the mailing list.
https://writer.confabulists.com
You still have to keep writing constantly (essays, short stories, chapters of a novel, or even some communication of what you are doing) but it feels more natural for writers to write than to keep posting cute pictures, hot takes or creative short videos.
Also, I added the concept of “books” in my platform, so new subscribers to your newsletter start reading your old stuff (not only your future posts).
Having a newsletter also is very satisfying that you keep some contact with people that like what you write, no matter how few they are.