My take on this is that the OP is simplistically addicted to learning because it's easy and requires little effort and prolongs not having to actually do something.
Back in the day of buying books at Barnes and Noble, I found myself doing something similar where I would continue to buy books to learn but never took any action or put off taking action on doing because it was much more comfortable to justify the time spent learning as "being good for something". Even if learning just meant leafing though the books. Similar to a graduate student getting degrees to avoid real life (in some not all cases I mean) and the real world.
I broke the habit by deciding that I didn't need another book and I should spend the time actually using the knowledge that I had acquired. Not that these were all computer books (they weren't) but an example would be to actually sit down with that book on PHP or Mysql and actually start to do something (was a LAMP book iirc). I did that one day and built a tool that I could use that was really valuable. I forced myself to read from the start. Now I question each thing I think about learning in terms of the actual value and whether I should concentrate on things that I have already acquired knowledge wise.