Simply trust the process. Personal anecdote time. Before the June test (actually two tests before the June test), I had a peak score (177) that was an outlier and significantly higher than what I had been testing at before (was steadily in the 170-173 range). Due to this, I focused less on prep and review for the next week, and only took one PT which I scored a 172 on, and then came the test. I had let the confidence that the 177 gave me get to my head, and as a result I underperformed on test day.
The lesson? Screw confidence in scores. I have felt pretty meh after a 176 and I've felt good after 174s in this round of prep. If you're doing the right things, if you're tackling the questions in the correct manner, your score will eventually reflect that. Trust the process, and let fickle things like confidence not get in the way. You shouldn't be up or down come test day... you should be zen. Just get to the point where you know the test backwards and forwards. Get to the point where if a Stained Glass, Dinos, or (god forbid) Zephyr Airlines comes your way, you're prepared. Drill and review your weaknesses, and keep flexing your strengths. Don't get cocky. Just know the test, and then confidence will come from that, and you'll be less susceptible to swings.
awesome advice. thanks!