Graduating earlier

<p>Hi! I am international student who has no AP credits to transfer. What should I do to be able to graduate in three years?( Chemical or Mechanical Engineering). I want to take some college courses this summer. I have heard about CMU's AP/EA program, but the program offers only two courses.So, is it possible to take community college or online courses during summer? What community college or online courses can be transfered to the CMU? Whom I can contact in CMU to find out information? Have you guys taken cc courses that was transfered to CMU?</p>