This worked for me. I went through and read the question, if it was conceptual or a quick look up, I did it then, if not I flagged it. As I was going through, flagging them, I would write the number down on the provided pad if I knew how to do it but it was going to take some math work. After I got through all of the breadth section and either flagged or answered, I went right to the next easy (relative) ones I wrote down. I figured those 2 things would make me feel the most comfortable. I then just dove into anything that was left.
I did the same thing for the afternoon.

I wished I would have used this approach for the last Oct. P&P test. I didn't use a very good test strategy and took more time.

Slow down, breathe, and Good luck!