Should I Start Over? Need opinions please!?

I am 18, a Sophmore (but still a first year student) at a Sate University. My goal is to get into Medical School. I have a 3.55 GPA (I know its bad [for a pre-med student] ), and have done horrible this Semester (Withdrew from 4 classes and got 2 C's). I want to just go to a diffrent University and start over with a clean slate...Is that a good desicion? Medical school is very comppetitive and one bad semester can really ruin it for me. I want to hear some opinions regarding this debate. BTW I am hispanic giving me a geater chance in getting into Med. School (If that counts for anything). Thanks in advance!