At college you have to make time for being able to manage your glucose etc. I was dx'd freshman year so there was a big change from the 'all you can eat' freshman meal plan to the 'salad and chicken' diet, but it works. It just takes self control and responsibility...some kids even develop into responsible adults in college! So hey you've got that going for you!
To echo what Lindsay said, you may want to talk to your doctor if you're having trouble managing your numbers with what you're doing now. If you're still on a pump, maybe try adjusting your basal rate according to whenever you are going high or going low.
As far as parties go, just bring your glucometer in your purse, or if you don't bring your purse with you, make sure you test an hour or two prior to going and then again before you go to be able to see if your glucose is dropping or staying steady...careful what you drink too, some drinks will lower glucose while others raise it. Diabetes makes drinking an adventure! But really, be safe and put your health first :)