Just stick with it. The volume of the stuff is quite overwhelming at first. It took me about 12 months from starting my distance learning (OATS) to passing the last exam. I was also working full-time throughout which made it tough.
When you head off for the 2-week pre-exam refreshers (or whatever Bristol do) it all falls into place. Honest
(p.s. as others have said, whatever you do don't be afraid to ask questions. The hours I could have saved just picking up the phone and asking an instructor...
)