Already Behind! Yikes!

I am feeling a bit anxious about this class.  I was out of town so I just received my acceptance letter to begin my masters yesterday.  Today I registered for two classes and made my first ever trip to FSU to get my text for my other class. (Did I mention I've never taken an online class before?)  Anyways, I am a bit overwhelmed and confused!  I hope what I'm doing is right, and if not, I'm hoping someone will tell me! So...Ready or not here I go!