Comment by mindhash

I was in similar state a few of years back. Read these, and used them to a good extent.

Lean analytics. (must read) Product-Led growth. (must read) 22 Laws of marketing (must) One million followers

If you like scientific approach: Influence by Robert Cialdini Contagious (Jonah Berger)

This resource is also gold: https://brianbalfour.com/essays/customer-acquisition

I am also documenting my learnings in a book [1].

[1] https://book.amols.blog/59decisions