After my first seven weeks in college, I think it's safe to say that I have already started to change as an individual. From my experience, here are the changes a college freshman experiences before fall midterms:
A solidification of ideas and morals:
Where you stand on things like underaged drinking, sex, manners, and what is "right"or "wrong" will go through a metamorphosis. You realize that somethings you thought were okay really aren't and visa versa. Can also apply to politics, but most freshmen don't care yet.
Christian? Muslim? LDS? Atheist? Buddhist? Islam? Animalism? Polytheism?
Whatever religion you previously affiliated with will either become start to have a stronger part in your life or disappear almost completely. Most freshmen would rather sleep in on a Sunday.
Use of independence:
Freshmen very quickly find out how much independence they can handle. Sometimes, the ability to party every night and skip every 8 a.m. gets to be too much. Especially when the first exam is a fail. They also learn about setting up a schedule, time-management, budgeting and studying.
Homesickness will set in, or at least friendsickness. Freshmen learn that maybe they miss home more than they thought they would, and regret how quickly they said good-bye on move-in day.
Dealing with people who have opposing beliefs, contrasting personalities, and abrasive characters can be difficult. It can be down-right impossible if your roommate is the one with whom your personality clashes. College forces you to deal with people in a civil manner and allows you to become more accepting of differing personalities.
In my seven weeks I have become a more organized person. I have also solidified my beliefs, realized that maybe I need my mother more than I thought, have had to deal with some pretty unruly people, and have found a church that I love to get up in the morning for. For me, a night in the dorms with my girls is more fun than a night in the forest with a bunch of drunkards. I have found time to indulge my love for volunteering through Habitat for Humanity, and I have realized that I really am more of an introvert than an extrovert.
College is great, just don't go into it expecting anything less than for your perspective on life to change completely.