Literally the exact same thing happened to me! I have been hitting 170 on the dot (my goal score) consistently across PTs leading up. I had a lot of nerves in September and a bad test experience (163), but was expecting to score at least a 165 on my October test considering that I felt a lot less nervous this time around. Please anyone who has gone through something similar give advice so I can get my goal score in November, I am so discouraged and have worked so hard.