A High School Junior who wants to do Pre-med?

You have the requirements. The only other thing that you can put on your admissions resume that I see necessary are your extracurricular activities, such as clubs you belong to, what volunteer work you have "specifically" done, athletics that you have been involved in, etc. Your marks are fine, don't let anyone tell you otherwise. The field you want is of course one of the toughest, and cream of the crop doesn't always make it, you simply have to WANT IT. Good luck.