try to eat more fruits, like whenever you feel like snacking, all of us I mean well most of us have times, when we eat and want more, but that doesn't more to go on if your not hungry anymore, say no to your self, it's hard believe me I know , but then it's gonna become easy, I mean as a start you can drop all of these and have 1 thingie of sugary stuff, like (either a (piece of cheese cake, or a chocolat bar, or an icecream, or a muffin or couple of cookies) and replace the other stuff with fruits like an apple, a peach a banana, some honey with toast for example, if you like eating too often why dont you break breakfast, forexample have a part and then after couple of hours eat the rest, try to make your self busy with stuff ,drink water and green tea