I can read hundreds of pages a day but if I do this on a sustained basis it overcharges my brain and I have problems with anxiety and can't sleep. A modest dose of video games helps me chill out since I am working with the same patterns over and over again and not needing to sort through a lot of stuff.
In the book "Have Fun at Work" it says that people can read about 60 pages of technical stuff a day.
I have standardized on Java for a programming language. I've put a huge effort into making peace with Maven, Spring, and my IDE. I have a framework that deals with a lot of the BS when you do command line apps so that I can bang out little apps almost as fast as a Python programmer can.
A lot of my getting there has been getting in the habit of reading the same stuff over and over again until I know it like the back of my hand. For instance I went through a year of hell with Maven and Spring because I was working on systems where whenever somebody had a problem they looked it up on StackOverflow. Nothing was ever done the same way twice and builds and configuration was a continuous source of frustration.
After reading the manuals for those products cover to cover multiple times I understand them in a holistic way, I use them right, and I can understand what is happening when people do strange things.
There are certain areas where I am pushing the start of the art and learning a lot and frankly that means I am working on certain things and I think as little as I can about Javascript frameworks and the like. For instance I think Clojure and Ruby are both cool languages but I don't have time to look up how to find the length of a String and stuff like that so I only write Ruby to configure Vagrant.