I was like that, always learning and not practising. I dont know, maybe i was searching for a perfect method, 'the method' that will rule them all. Also maybe i was afraid that if i miss some important knowledge the practise would be harmfull. (For some cases like diet, exercsing you really should learn a lot. But in most cases you should just begin practising whatever you got in your hand.) I was buying books after books and when i really learn the theory i was changing direction.
Then i read Pavlina's self-discipline series, worked on that and in three months i become a totally different person (I became a vegetarian, early riser (just 07:00
but early for me), more productive, regularly exercising guy, quit smoking, coke, junk food etc., get organised and much more
)
Just accept that we re not really learning by reading, only by doing it. I recommend little steps and 30 day trial method that Steve Pavlina wrote about.