Looking at my exams usually is a good way to measure my strengths and weaknesses. Then I focus first on the fundamentals, making sure I feel solid there. Afterwards, I attack the other topics from weakest to strongest. One word will usually invoke all of the stuff I had written on previous versions, so I can condense lots of info onto one or two pages. This helps organize info in my head.
Time management is another major thing.
I would figure out how many days or hours I had to study, and then use my ranking to make a schedule of how much time I can afford to spend on each topic. I always ended up falling behind on my schedule and revising it as I went along, right up until the final exam. But that's just my procrastinantion problem that I still have not overcome. I try to focus only on the current topic I assigned to myself to avoid getting overwhelmed. This is very hard to do, but when I can manage it, it helps alot.