I agree with Arya's challenge. One of my favorite teachers in high school always used to say, "When you're in college, take a comparative religions class from an agnostic." Agnostics, particularly as religon teachers, are a little thin on the ground

but I came to realize his point many years later ~ and it's exactly what the Rho Chi's tell you during rush:
KEEP YOUR OPTIONS OPEN.
Do investigate faiths other than your own. Do investigate all forms of Christianity, Judaism, Islam, Hinduism, Buddhism, Paganism, etc. You may find that something rings more true with you than the faith you were brought up in. Or you may find renewed faith in the religion of your birth. But I've always felt that one really must embrace one's religion as an adult, rather than as a child.
Your undergraduate years are a good place to begin this search; it's (generally) the first time you're away from home. But the search goes on throughout your life. And, whatever path you find, you will have a deeper understanding of what others believe, and you will be better able to relate to them and understand them.
<stepping off my soapbox>