Take Step 2 early and do VERY well. Kill your 3rd year with honors. Get involved with some radiology research with hopes of a publication or two. Do 4th year away electives at places you think you would like to go. Probably not Duke or UCSF, but pick some middle to lower-tier programs and do well on your away rotations. All is not lost, but you have some ground to make up....Good luck 🙂