Prep Tests Going Very Wrong

yhtkim

On drills, I usually go -2 on RC, -2 on LG, and anywhere from -1 to -3 on LR. But when I take PTs, my mistakes double. This has been going on for several months now.

Most recently, I split PTs 63, 64, and 65 into four individual drills. After adding up the score from each drill, my totals were 170, 173, and 171, respectively.

I just took PT 65 as a full practice test and got slammed with a 165.

It hasn't always been like this. In July last year, I was hitting the 170s with relative ease on full PTs. I took a break from hardcore studying because of work, but I made it a point to keep up with drilling. So why am I doing so poorly on PTs? Any wisdom would be greatly appreciated. Thank you.