i've taken a year of Bio, a year of calc, one semester of chem, a semester of physics, and no orgo... nor biochem. can i still start studying for the MCAT? Or should I wait until I took those classes and start?
You can start studying for the MCAT whenever you want...the question is when are you going to be taking it? You probably shouldn't, however, actually TAKE the MCAT until you've taken Physics, Bio, Chem, and Orgo.
Trying to figure out orgo for yourself is bad news. You can give it a shot, but honestly with all the material on the MCAT, limit your studying to what you have at least had some experience in. Then expand what you are studying as you learn it in class.