Echoing the posters above, this is going to take you at least 2 years. Here's an idea for just the core sciences (I'm not sure what else you're missing).
Fall: Chem 1, Bio 1
Spring: Chem 2, Bio 2
Summer: Physics 1, Physics 2 (assuming the school you are at has an accelerated program where they cram an entire year in the summer term)
Fall: O-chem 1
Spring: O-chem 2, study for MCAT
Summer: Apply
This is a pretty dense schedule and your biggest hurdle will be the second spring term where you are balancing Ochem and MCAT preparation. There is no way you can apply without at least having these classes listed above done (though you can finish other small stuff like math, social science and whatnot during the year you apply/interview). The MCAT isn't some test you can BS your way through. You'll also need to have some extracurricular activities to back up your story of "why medicine" to whoever will read your application in the future. It takes far more than just a good GPA, MCAT score and pre-reqs fulfilled to get into medical school these days.