Same here, even though I will be entering my fourth, and prayfully, last year
I'm always worried about getting too bogged down with work. It's really the only thing I loathe about college now. But I have also learned to put my trust in God throughout the years. Keep in prayer with God for His help and do what you can. Work diligently (and smart) but don't push yourself.
I had to learn to stop working at wee hours of the night/early morning and learn to rely on God to take care of what I couldn't get done. And I can testify right now that He helped me in situations that I didn't think I could get through.
There's nothing about school that's worth running yourself crazy or sick. And I've had a few times where I felt I was on the edge of either having a heart attack (seriously I was having mad chest pains) or losing my mind.
As far as the college being a Christian college, don't be surprised if you get there and people turn out to be unholy. I have a few friends that attend a so-called Christian college and the stories I've heard them tell says that students there act like any other students at any other college. The school I attend isn't officially recognized as a Christian school but we have Methodist connections (for lack of a better term) and a large percentage of the people here are just as worldly and freaky and whatever else you wanna say as any people I've ever seen.
Hopefully that didn't discourage you
Just don't be surprised if it's not like you thought. But with God's help and guidance you will do okay.