What I found helpful is going through the QDB, the ones I know, answer. The ones I do not know, leave. All the wrong and unanswered question -> Google (is your friend) the exact wording . Usually end up on atpforum.eu (GREAT JOB GUYS, btw!) with an explanation ~110% better than any text book, and work it out from there. I also have a Excel table with the formulas that I often forget.
I only have M&B and FP left to do on the 22nd of June.
