In my experience I feel a break is what you need before hitting the books again. Some people may disagree but it worked for me. I went and did some flying, 30 hours or so and got some more inspiration. I then went back and did the Navs (as they were in the CAA days) and didn't do to badly, well enough to keep flying and re sit the one that I had failed at the same time. If you find yourself not learning anything and getting easily distracted then it isn't worth studying..take a break!
