Hi I'm not sure this advice will be along the lines what you seek, but this is how I went from PTing 164 to a 168!

I have been studying for almost two and half months so the way I see it I have already covered most skills that are needed to answer every question correctly. But it is so hard to make the rubber meet the road on a PT. To make the jump I needed to be answering every question to the best of my ability and without any distractions or anxiousness holding me back. The solution that I found is to create a routine that clears my mind and freshens up my thoughts before every PT. First all distractions like cell phones, chores, and other work are put away. I start out by taking a long shower in which I try to "wash away" all my other thoughts. First I focus on thinking about "nothing" if possible, next I try to think of what errors where made on the previous test and replay the correct solutions in my mind. After this, if needed I rest for a while longer while continuing to keep my thoughts as clear as possible.

When I feel fully confident I begin the PT!

I hope you find this helpful!