Under the "I wish I had done..."
Volunteer at a place that exposes you to medicine. I liked the ER because the staff was cool about letting me watch instead of always cleaning stretchers and menial stuff.
Get some meaningful research experience. Find a lab that lets you do actual experiments, even if they are simple or boring. You don't have to do an entire, publishable project. Just get some real experience to see what biomedical research is like.
Do well in your classes! I can't stress this enough! Your GPA is the strongest predication (in a statistical sense) of how well you'll do in medical school. I know there's some controversy on whether this is true, but the fact remains that a significant factor affecting your chances is GPA. So do well!
Go to mock interviews. To toot my my own horn, I'm a pretty well-read guy and generally consider myself to be fairly atriculate. Nonetheless, I'm pretty sure my interviews torpedoed me last year. It's a lot different when you actually interact with someone than when you go through it in your head! You can never be sure where the converstaion may wander. Here is why I say to get meaningful volunteer/research experiences: you may be asked about in the interview. You should definitely be able to talk intelligently about your experiences (what you learned, what it meant to you, why it will make you a better doctor, etc etc etc).
Above all, make sure you really want to go to med school. It costs a lot of money to take the MCAT, apply, and go on interviews not to mention the cost of medical school itself! Save yourself some grief and money and quit now if you're sure you don't want to go. If your SOLE reasons for going are money, parents, prestige, than med school is probably not for you. All three combined may be... but that's up to you.
The Simpsons are coming on, so I'm going to quit typing. 🙂
-X
