It has been a long time since I took care of a baby snapping turtle, but I remember that we stabbed flies with toothpicks, broke off the point of the toothpick so it wasn’t too sharp and then held it in front of the turtle to get it to eat it. I’m sure others can add more tips, but I would suggest that you don’t try to keep it in a college dorm, I’d call the local wild animal life authorities or shelter. Reasons for not keeping it:
1) You are in college, a baby snapping turtle needs round the clock care.
2) I imagine it is against the rules to keep it in your dorm, you don’t want to get kicked out.
3) Turtles carry disease just like other wild animals, you could get very sick, if you aren’t very careful about cleanliness.
4) It is a snapping turtle, not a good choice as a pet long term, so it would be better if it could be returned to the wild where it can lead the life of a wild snapping turtle.
I admire your desire to protect the turtle, but it would probably be best not in your care.