Going from 160 to 166 requires you to get another 9-10 questions right. It would be impossible for me to make that jump. I'm not saying it would be impossible for you, but you'd probably have to put in at least 200 hours of studying. Why not delay?
Consistently PTing around 152 until today. Probably wasn’t ready but still took it. Just don’t know if I should spend 200 bucks tonight.. cancel my score...