How can I stop eating fattening food?

I'm 5'1 1/2 and weigh 119lbs, so i'm not fat but i still wanna loose between 5-10lbs to get a better body. The thing is I can't stop eating bad food! I workout everyday and I don't eat a lot of food (I can go through the day with a mocha drink and 2 small snacks) but it's hard for me to stay away from those small snacks being junk food and having soda/mocha drinks everyday...is there anything I can do to help me not crave them? lol thanks =]