I did the same. I'm one of those people who had to set targets per day, such as read 20 pages or so many chapters. I also, split my exams into 4 instead of the BGS 2 modules. I read through all the material before the brush ups, but the month before the exams only concentrated on the subjects required for that sitting. I decided to take the harder subjects on their own, such as gen nav and met, and, perf and prof. The rest I did in 2 lots. This gave me more time with e material and it worked for me.