Step 1 is definitely a gate-keeper but it is certainly not what defines you. Yes, programs do have cut-offs for interviews but there are other elements to your application that may help you.
1. Improve on STEP 2.
2. Do well on your rotations. Correction, excel in your rotations.
3. After excelling in your rotations, get some stellar letters of rec. Don't be afraid to ask your letter-writer "Can you write me a strong letter of recommendation?"
4. Research. Are there projects you can get involved in? Are there topics that interest you?
Anyone else have pointers?