I'm so sorry you had such a bad first day experience with college, Honeybee! I can sympathyze - I didn't really start to enjoy college until my second semester, when the one close friend I had made dragged my shy ass to rush, and I began pledging. Now I'm not nearly so shy, and I love school!
It's really hard to get used to the new workload! When you come out of high school, you usually have been pretty much floating by for the last several years. Once again...it'll get better in time.
As for not being able to meet anyone in classes - actually, your book situation will help you out.
After class(definitely not during!) look around for people that seem interesting. Then either ask them if they were able to get the book, and if they have it, ask if you can borrow it/get copies/etc. Commiserating about school tends to be a #1 conversation starter. Just make sure you aren't too negative! Also a good conversation starter from freshman to freshman is: "Do you know how to get to (blank)?" Just make sure you know the person is a freshman too, other wise you will make it very clear that you are a freshman!
Good luck
(we promise..it will get better!)