[truncate]

I recently got out of college I'm going through almost same situation. What I've learned is you are eventually going to forget many things after some time, and you can't know it all. Secondly, knowing theory is one thing, making use of what you know is another. You can grasp all theory you want, but the main point is how are you gonna put that into use? A good job where you get to solve interesting problems may help. I couldn't do so. What I'm doing right now is, pick up a subject area and build things from scratch. I feel that this is working for me.

Also, I see a pattern that more you are used to studying more quickly you tend to understand something new. I believe its something do with reading habits. So don't leave theory completely, but keep a balance b/w theory and practical.