Honestly, THE only way to lose weight is to burn more calories than you eat. So you will need to either cut back on calories or start exercising, or preferably both just because exercise is healthy! (And some exercises can help firm up your tummy muscles!) If you say you are "always" eating, then a good start would be to buy less snack food or buy healthy stuff (fruits, veggies, etc) -- if you don't have junk food laying around the house, you won't be tempted to eat it! Or at least, I can't resist the lure of junk food when I'm studying, especially late at night which is probably the worst time to eat lots calories!
But essentially, you just have to find a diet and exercise plan that works for you -- start by doing a few quick and easy exercises that you might enjoy, and possibly can do at home rather than taking time to go to the gym (crunches, weights, jump rope, walking or running, etc.). Also work on cutting calories, either by eliminating certain foods or at least by limiting portion sizes. Remember you have to splurge a little -- if you love chocolate, then go ahead and let yourself have a mini candy bar or two, and just cut back on something you may not like as much, say fried foods or soda.
Anyways, these are just things I've read, I have a naturally high metabolism and wish I could gain weight and can't! But my mom has lost a lot of weight (and maintained the loss) over the years by making simple changes like that -- reducing portions, substituting foods (e.g. 2% milk cheese instead of regular, light and fat-free versions of foods -- you would be amazed at how many calories you can eat through condiments alone!), and slowly adding more exercise into her routine. Also, since you're at college, be careful about eating cafeteria food! The food at my undergraduate college must have been incredibly fatty; my roommate (who was already pretty slender start with, about 120 or 130 lbs and 5'2") lost 15 lbs right after graduation without even trying, just from cooking her own meals instead of eating school food! (And her asthma attacks dramatically decreased after graduation, because the greasy cafeteria food always gave her congestion!)
But I understand your frustrations about college, the last two years of my undergraduate schooling and now in grad school, I have very little free time and it is very hard to eat healthy and exercise! Even though I don't need to lose weight, I do want to eat healthy just to get all my vitamins and nutrients, and calcium to prevent osteoporosis! It is a little easier now that I'm living in an apartment rather than a dorm though! (Plus, hubby cooks for me often when I don't have time!
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However your comment about wanting be "as pretty as the women on tv" is a little worrisome to me.... Such women are definitely not the norm, and they have tons of professionals working on their hair, makeup, diet, and fitness routine, along with plastic surgery and breast implants and who knows what else... I saw something on TV the other day that talked about how much work it is for most actresses to stay thin, most of them have to diet and exercise a lot to keep their figure! They're not just "magically" pretty -- they have to work at it!
It's most important that you learn to love yourself regardless of your body (and I know that is hard!) because if you are unhappy with your weight now, are you sure you will be so much happier if you lose 10 lbs? Or will you just want to lose more, or find something else about your appearance that you don't like? I'm all for making the best of the body that you have and emphasizing your best features, but be careful if you feel the need to change a lot of things!
Anyways, that was much longer than I planned, but hopefully something will help!