How to get a 5 on AP Physics 1 Exam?

I bought 5 steps to a 5, PR, and Barrons. I used Dan Fullerton for basic concepts, and the school textbook and my teacher/class concepts are really helpful.

But the exam is super super hard. Only one guy last year pulled a 5, even with a lot of smart people in the class.

For those of you who got a 5, is there anything else I should be doing or any study tips?