I can vividly relate to what you're talking about. My work requires continual non-stop study and it's never been harder than since beginning the recovery process. I can't say if that's part of your difficulty in getting motivated or not, but it's sure possible if you're intensely working on recovery issues.
So the hardest thing about studying is starting....beginning...opening that book or whatever it is, for the first time. Absolute torture!!!!!! lol no seriously, sitting down in the place where you know you can get some work done without distractions with the thing you've got to study in your hands is nigh unto impossible. But I find once I have made that step...actually gotten myself to the physical place, NOT necessarily the mental one, where I can study and open the book to the page with which I need to begin, then it begins to take care of itself.
Certain things like appointing specific times to do the work..."I"m going to start studying at 9:00am" or whatever can also be a big help. It becomes less of a "yeah, right, I need to go do that..." and turns into more of a "sorry can't talk to you too long, I've got to study at 9:00, but I"m free till then".
LIke so many things we talk about here, it's a matter of being smarter than your your own mind...tricking it into thinking the way you want it to.
Good luck Jason,