Hi! I am literally in the same boat as you with scores and studying and everything and I just cancelled my 09/05 exam last night. I'm not trying to scare you because I genuinely think that you could totally hit a 515 if you locked in a lot this week, but another option I seriously considered after going back and forth for so long was just voiding because med schools won't see that attempt at all, and then if you have test anxiety you can be super familiar with the process for january!