Your chances are good if you can maintain that GPA while taking the pre-req classes. You also have to take the MCAT. You will have to do more volunteering since your high school experience will be weighed less than anything recent (or lack of anything recent).
Is it looked upon poorly to be a recent graduate when applying to career-changer programs? I have done internships, but have not actually held a permanent position, so I am wondering if this will hurt my chances