You have around 2 months if you plan on taking it end of August or beginning September. I suggest purchasing a UW subscription, doing 50-60 problems each day (so you finish in about 6-7 weeks). Your last 2-3 weeks should be mainly AAMC stuff.
What you need to purchase: AAMC FLs + SBs (SB 1 & 2) + CARS QPacks 1-2, UW (roughly 3000 Qs, you can ignore CARS so it comes to around 2600).
Download Anki. Find the Pankow Deck for PS. Download the 86 pg PS Doc. Read through it 2-3 times while studying. Do Anki every day.
If you do all this, you'll break a 510. Good luck!
