Yea, I get it. The thing is to get that laser focus, you need to understand what you're looking at and why - it has to be interesting.
I'm going to recommend a book on tells. It's a bit old at this point, but it goes into why people do different things. There is an interesting story at the beginning of the book concerning doctors learning their craft that illustrates the importance of observation. You'll like that part.
"Phil Hellmuth Presents Read 'em and Reap"
https://www.amazon.com/Phil-Hellmuth...=UTF8&qid=&sr=
Take your time with it.
Be patient, these things take time, sometimes a lot of time. However, what's a couple of years compared to a lifetime?