eat what you want, when you want it. eat when you're hungry and stop when you're satisfied.
your problem could be emotional (low self-esteem = weight problems, like me) or physical.
there might be a physical reason you're body doesn't drop weight. Don't tie yourself to a diet or tons of rules. The simpler you make it the better and the more likely you'll keep to it.
start with breakfast WITH PROTEIN every morning. breakfast is the one meal you cannot skip!!!
and nothing is every worth killing yourself over. give yourself a break. you can lose weight, but i'm sure you also have some really great physical characteristics (eyes, etc.). focus on what you like, not what you don't like. learn to love your body. accept it and know you are not your body. so your self-worth shouldn't be tied to your body.
think of people with other problems body related. i know a man who has this gravitational force pulling your eyes and other people to him, and he's been in a wheelchair for years. it's not the body. it's the mind and heart. and i can tell you've got a lot of heart.