I used to be a GTD zealot. And then I realized I was spending more time tracking and organizing my time than actually, you know, doing something with my time.
I've now come to believe that if you need to spend too much time organizing your life you are either a) OCD and need genuine professional help or b) being asked to do too much. "b" is far and away the most common problem among thought workers.
Quit trying to do too much. You'll need less productivity tools and enjoy your life more.