PBD
I have taken ground school for my last 2 exams, although I didn't for Met because I enjoyed it, I have found groundschool to be really useful.
It just cuts out the stuff you don't need and helps you focus on the bits that you do.
Once the penny drops and you have passed your exam you can keep going back to the Met book and more will click into place.
It is (as another forumite said) a very important subject.
PM me and I might be able to help with recommendations.
Girl On Top