Read. Read. Read. Whatever you like. But don't forget to read educational books sometimes, for example books on how to get better at writing.
Recently I was re-reading my old posts that I wrote 2 years ago, when I used to read book regularly. Now I can't believe that I'm the man who wrote them. Cuz the person who wrote them was much smarter than me rn, he was able to think creatively and used words that wouldn't even come to my mind now. And they written in a simple language and well structured.
All that just because I haven't read books in a long time. I feel ashamed to the point that I decided not to write anything until I read at least 5 books.