Franky I am curious about your experiences with the book exercise. You say you failed at it. Can you be more specific? Maybe we can help you out.
Personally, I found that the super reading and dipping worked. After I was done with it I would read over the entire paragraphs to confirm that what I had dipped was indeed relevant (because it seemed like I wasn't dipping very much).
When I looked over the entire passage I realized that it worked. The stuff I hadn't read was not useful and should have been skipped. I think that trusting your inner mind is an important component of this course.