I am not saying that you can never eat these things, just don't have them in the house. You may be surprised. Many people eat when they are not even hungry, and they don't even know it. When you want something to eat, take a moment to decide if you really want that particular thing. One scoop of ice cream may be nothing in comparison.
Deprivation leads to bingeing.
Don't deprive yourself of something that you really want and don't let yourself crave something for too long. A diet is temporary. NOW, not tomorrow and not next Monday. Working out not only burns calories, tones muscles, and increases your metabolism, it also can help relieve depression and even suppress appetite. Take an aerobics class, walk, jog, roller skate, lift weights, or swim for 20-30 minutes at least 3 times per week.