I launch my first ebook 🎉 What is next? Looking for any advice.

Hey guys! I launch my first eBook on Amazon KDP and I am kind of nervous lol! I don't know what is next, any tips?

2 copies of the ebook have been sold and I've first rating, it is only 3 stars 😭

Anyway, I want to ask next steps because I don't know how can I sell more. I am digital marketing and I know many things about this but I can't plan for myself lol. I guess I need suggestion from other people. Any advice for this? What is the best tips for more sales?

P.S. Here is the book: https://www.amazon.com/dp/B09SZB1CTL