What is my step to step route for my career change?

Tough question. To me, if you're only a few classes away from complete all the pre-req's, it makes sense to complete those and apply. Grades are only one component of the application process (an extremely important component, don't get me wrong), so depending on how poorly you did the first time around, you might be able to pull through somewhere in the nation if you land a high PCAT score, put in a good deal of time volunteering, and perform extremely well in the interview. If you don't get in on the first go-round, try and find out why - some programs will explain what about your application put you at a disadvantage compared to other applicants. At that point, you set out to correct those deficiencies.