Hey bud, don't be discouraged, that was my first score as well. Actually, I took it a second time (literally no studying at all, because I was an idiot and thought a year of ochem and biochem was good enough) and scored even lower at 492. Had a quarter life crisis, wondered if I even wanted it anymore, and then third time around I got the Kaplan 528 book and ran through that baby. Scored a 505 which was good enough for me since I wanted to go D.O. I got plenty of interview invites and acceptances. I did have a slightly higher GPA, but if you can score around a 507 you'll be gucci.
Edit: given you have pretty decent ECs