Here’s an easy tip to fasten your learning path (and it works with any language) :
As a kid, I was a big fan of Harry Potter.
In French, I watched all the movies (more than once) and read the books.
When I was learning English, I naturally watched and read Harry Potter in English.
Same for Russian: as soon as I started to master it, I started to watch and read Harry Potter in Russian.
Of course, it’s not typical Russian litterature as Tolstoi or Dostoevski, but for a language learner, it’s perfect
And I know that if I want to learn a new foreign language, the first movies and books that I’ll watch and read in it will be Harry Potter.
That’s what I call my “personal Rosetta Stone” (as a reference to the real one)
Yours can be anything: Lors of the Ring, Game of Thrones, Dragon Ball, Hunger Games, etc.
When there’s a book + a film (or series) it’s perfect.
If you struggle with finding one of those in Russian, don’t hesitate to ask.
Note: This is only one advice among hundreds that you can use for a faster learning of a language. If you’re interested in it, I may recommand you to do some searches about language hacking, I can recommand you some books which may be useful if you plan on learning multiple languages through your life.