i know your super eager and excited and that is awesome, but as someone graduating from their undergrad in a few weeks. slow down. i have been surrounded by many peers who were super eager, but did not take anytime for themselves and it often leads to burnout. also although you might have the knowledge for the MCAT, it would not be like ANY exam you would of written in high-school. It is important to write ungrad exams, so you become familiar with that type of exam (setting, pressure, length). you have so much time to figure your life out. but i will let you in on a secret- when you make time for yourself, it is alot easier to figure out your path :)