So if you are a new freshman in college, here is a short FAQ about college life. College is a bunch of buildings in the middle of a small town or large city or cornfield or something. If that is not specific enough, it is also defined as an institution of higher learning for human children. Few animals go to college, except dogs that can kick field goals. Colleges don't have graduate students working as teaching assistants to defend professors from having to teach kids.
Universities also have bigger stuff a lot of the time, like bigger endowments and buildings.
The professors, conversely, are smaller-that is why they need to be defended from students, who are often very large because they grew that way in high school. Not everyone is fit for college. The truth is that difficulty varies so much from school to school and course to course that not much can be said definitively about this question. Most likely you will have room, food, books, clothes and friends taken care of for you before you even get there. Many schools also offer a healthy CD stipend.