I think this (education) is a lacking area in Rust. You can read the reference book, and even a few other ones, but still not being able to have a sufficient/s

I think this (education) is a lacking area in Rust. You can read the reference book, and even a few other ones, but still not being able to have a sufficient/solid grasp of the language. I couldn't find good material past the beginner stage (I consider Rust for Rustaceans advanced). My personal advice is to find some project you'd like to implement, and practice a lot, or contribute to small projects you like, without worrying about best practices. There have been definitely many moments where I wanted to close the Rust chapter, and that's why I think it's more important than other languages to keep the motivation high, which I think is best achieved by working on projects. Rustlings is nice but... not stimulating.