I agree with Tom about eating less - weight loss is 80% diet, 20% exercise. However, hunger is NOT your friend! Hunger will make you miserable. You need to change how you eat PERMANENTLY and although you can maybe deal with being hungry to see short-term losses on the scales, can you deal with being hungry for the rest of your life???
Ask slim fit HEALTHY people about what they eat and their exercise and try to be more like them. I bet none of them are hungry, they eat 5-6 times a day, they don't eat rubbish or drink diet soda (that's a crock, google diet soda health effects and you'll be horrified about what that junk is doing to you) and they MOVE. Both structured and incidental exercise.
BTW I'm 5'8" and 130lbs, about 18% body fat, most of the food I eat doesn't come with a label, I walk or cycle to as many places as possible, and I get about 7-8 hours of exercise (I call it 'training') a week. I generally eat three times before lunch, snack on fruits, nuts, and yoghurt in the afternoon, and have a smallish dinner of fresh fish, chicken, or organic steak with vegetables for dinner (and a glass or two of wine!) Works great for me!