If you're coming from a wicked strong undergrad performance, ie 3.7+ GPA, and you've taken plenty of math and maybe some science already, then you're set up to do what you have to do during prereqs:
1. Get straight A's
2. Master MCAT content (not the same as MCAT test prep, that's separate)
3. Get faculty recommendations
If you don't have great grades and plenty of math already, then you aren't set up to succeed. Taking some math and/or science at a CC to get ready for the prereqs would be a good idea.
Also: if you haven't started clinical volunteering yet, today would be a good day for that.
Best of luck to you.