Wow, I am in the exact same situation as you. I'm a freshman in college, primal for about 8 months, sort of struggling with the lifestyle. It can be extremely hard when everyone else is consuming beer, pizza, etc. like there's no tomorrow. I understand the feeling of being a slave to the lifestyle-it's pretty much impossible to eat at the dining hall due to their insistence on coating all the meat with flour, putting pasta with everything, and using god knows what kinds of oils and sauces. If you are really struggling with sticking to the program and binging, I would suggest staying VLC during the week and then making Saturday your "feast" day, where you can eat fruit and some Larabars(though I would slowly try to phase those out). Having a set timeframe where you can refeed carbs has really helped me.
As for staying on the wagon-sometimes it just isn't feasible to be 19 years old and having fun in college when you're the party pooper who doesn't want to go out for pizza or whatever. Remember that you're only young once. Maybe some weeks are 90% primal, maybe some are just 60% primal. Decide when and with what you just want to live life, because most of the time the nasty beer at a party or the store-bought cookies at a meeting really aren't worth it. Sometimes the late night pizza run is. Find your balance and it will seem much better.
Also I would love to talk to you more about being Primal in college! I don't know ANYONE so it would be great to have someone to talk about it with!