There is not enough information about your background to get a meaningful reply.
However, in another post you said you failed some college courses. http://talk.collegeconfidential.com/college-life/2146263-i-fail-some-of-my-college-courses.html#latest As noted on that post with multiple failed courses medical school does not appear to be a viable plan. I’d strongly suggest you sit down with your academic advisor to come up with a short and long term game plan.
If you continue to forge ahead with the idea of med school please do some research first to get a basic understanding of the coursework needed and other requirements to apply to medical school. If you are in college there should be a pre-med advisor on campus. If you are not in college much of this information is available online.