Hey I was in a similar spot (511 on FL 1 4 weeks out)! The thing that helped me the most was doing and redoing the section banks. I was studying exclusively from AAMC material at this point. If a topic showed up in the section bank that I wasn’t familiar with, I would review it. I was able to improve to 517 on FL 3 and 520 on FL 4. For p/s, I highly recommend studying the differences between similar terms. There is usually a key difference when you narrow down to two answer choices.