Are you done with content review? (Kaplan, EK, TPR, Berk, TS, etc)?
If so, then start with AAMC. Start with the q-packs/flashcards first, then move to CARS, then to SBs. Then take the sample, OG, scored... see where you're at.
That process should get you to middle of April, then you can hone your skills, take exam, drink 🙂