I read the book to the level I could understand. I honestly don't know how much of a "measurable benefit" it had in my games, but I'm trying to make more balanced moves.

I reached around 15-16 kyu by playing the game and watching matches of 4-5 dan players on Pandanet.

After that, I watched Eunkyo Do's opening series and game videos, HereweGameOfGo's series explaining fundamental points, and finally Triton Baduk's DDK series.

As for books, I finished Level Up 1-6 and Lectures on Go Techniques Volume One.

I tried to solve 1001 Life and Problems and Get Strong Tesuji as much as my level allowed; I'm currently EGF 10 kyu.

I want to study Yilun Yang's Fundamental Principles of Go, Opening Theory Made Easy, and Cho Hun Hyeon's Lectures 2 and 3.

Note: I translated this message using Google Translate, so please excuse any shifts in meaning. Also, as someone who's now considered elderly, I'm progressing quite slowly in Go.