Hey there... I gained 25 pounds my first year... I couldn't believe it until I tried to squeeze myself in a pair of jeans and literally ripped the belt holders off my jeans ( )... In addition my mom told me my behind was way too wide (MEAN) I put myself on a STRICT regime. I used to run about 3-4 miles 4-5 times a week and was barely doing it 2x a month. So I CUT TV out of my life!!! Went to bed earlier, walked to the train station 2x a day (about 2.5 miles total)... cut the late snacking!!! If I was studying late, I MADE SURE that I only drank water (and lots of it) and if I felt very hungry I would snack on carrots, small fruit, or salad (no dressing). In addition, I made it a must to go to the gym on the weekends (bright and early) and I would come home and relax (SLEEP) and continue with the things I had to do... ALSO... I made breakfast my biggest/heaviest meal! This really helped me and sustained me till i had lunch. I stayed as far away from the vending machine as possible!!! I couldn't afford a new wardrobe, so I HAD to lose the weight... the only thing I bought myself were about 2-3 pairs of BLACK pants in case I couldn't wear my sweats.
Good luck to you and remember you will lose the weight just stayed focused.