Yes, you are golden. UWSA2 tends to be very predictive in my experience. Spend the last few days reviewing biostats and any topics you may be weak at. It wouldn't hurt to do a quick run through through First Aid for Step 1 (still the best resource out there even for Step 2 in my opinion) either. You'd be surprised how much of Step 1 shows up on Step 2. Even the memorization heavy questions like which chromosomes go with which genetic diseases (I.e Prader Willi = chromosome 15).
Best of luck!
- Annette G, MD, MPH - USMLE Tutor and Residency Advisor at Med School Tutors