oh man, i totally understand. i've always been naturally slim and petite, but i'd gain 10 pounds over the college year. i'd lose 10-15 pounds of it over the summer. seems like when the summer kicks in, we all look good and feel great.. but once college begins again, we get into our old habits. this summer i'm training and teaching myself to REALLY eat healthier, and keep those habits for life. i gotta look good in my senior ball dress! heh
i don't think it's that difficult to exercise in college, somehow you can always make SOME time. even putting in 10-15 of runnning on the treadmill or elliptical helps when you can't do a normal workout. or maybe buy a workout video, and do a little exercise in your room. try that, along with eating healthy carbs/grains, fruits, veggies, and lean proteins. i know it's tough to make good food choices in college, but it is possible, you just gotta have the willpower to choose a nice bowl of cereal over that bacon egg and cheese bagel. we're all here for you, and to help each other! good luck.