So far the advice here is NOT good.
1) One person told you to quit eating junk food. Bad advice, especailly since he didn't know if you were eating any or not - turns out you aren't.
2) Another told you to just run and the pounds would come off. More bad advice. Obviously you are a runner and that hasn't been working.
In times like these, assuming you REALLY are 10 pounds over weight, you need to take a focuse approach, even if for just a little while to get yourself familiar with how many calories you are putting in your body each day. No one wants to count calories for ever, but you should do so for 10 weeks and get those 10 pounds of fat off (and it's NOT baby fat - you're in college for Christ's sake!).
Here's what you do (assuming you're a woman):
1) Take your weight and multiply it by 11 (if a man, multiply by 12). This gives you the amount of calories you need to take in each day to maintain your weight if you lead a SEDENDTARY lifestyle. So, let's say you are 130 pounds; 130x11=1430. So, if you are a slug, you need to eat 1430 each day to maintain your weight. Since you are a runner, you need to add 100 calories per mile for each day. So, lets' say you average 7 miles a day. You now get to eat 2130 and maintain. If you do lots of other exercise other than running each day, add that to your list. Add 100 calories you CAN eat per 10 minutes of exercise - walking to class, etc. My guess is that you can probably ad 300 calories per day there, so you're up to about 2430.
NOW, in order to lose a pound a week (a healthy way to lose weight) you need a 500 calorie deficit each day for 7 days (as 3500 calories equals a pound). So, at the above fitness level and at a weight of 130 (as an example) you need to eat 1930 calories each day. You will lose 10 pounds in 10 weeks with this method. You can eat it all in ice cream if you want. It doesn't matter as far as weight loss goes. If though you want to be HEALTHY, you will stick to whole grains and whole fruit (not so much juice) and drink water mostly and eat lots of veggies and lean sources of protein. Gotta have the carbs too of course.
You now have the info you seek. Once you get a feel for how many calories are in things, you can stop calculating so much, but you should really break out the calculator for a while so you get the hang of it.
It's all a matter of calories in and calories out (with very few exceptions that have little effect in the long term with regard to weight loss). Anyone can weigh EXACTLY what they want to weight with knowledge, a claculator and the will to do it.
Jim Rome - LATE!