Need advice from current medical students or recent graduates!?

-What are my chances at med school (am I on the right track?)?

I am a black female (I don't know if this is relevant, but thought i should add) I attend one of the highest ranked public universities in the nation. I am currently an Applied Math major, thinking about doubling in Chemistry. I have an overall GPA of 3.3, I will beginning my sophomore year in the fall. My science GPA is a 3.4. I volunteer at the hospital and at an inner-city middle school. I work a part-time job. Thinking about pledging in a sorority, if I have the time. I've been doing research in a lab for about a year and working on getting my name on a publication..

Any advice?

Thank you