M2

Buy and start using USMLE World or Kaplan immediately. They are useful not only for Step I but also studying for your classes (Path, Pharm, Pathophys, etc.)

The longest subscription of UWorld is 6 months or 12 months, so unless you are not planning to do questions until Spring, get UWorld immediately or else you waste months of your subscription.

If you are an AMA member, you should have Kaplan Q Bank discounts.

Be aware that 2nd semester is much busier than the 1st due to tutorials.