If you overeat or binge, you may in your past have experienced something you could not bear to feel or know. Overeating puts a great, numbing shield between you and your awareness of yourself. It is part of an effective system many people develop in order to not fully know their history.
That history may involve events that happened to you, events you witnessed, events you heard about. That history may involve powerful and bewildering emotional experiences you had in the past but did not have the strength or maturity to understand or tolerate. Overeating protects you from knowledge about yourself.
No one can end an effective protective system unless they know they do not need that protection any longer. If the threatening sense of danger you have is a secret from yourself, you have no way to evaluate your safety. Without knowledge of your inner life you can't know when you are out of danger so you will continue to use your protective system, overeating.
Once you know your secrets you begin to learn that you are able to live with the knowledge. You can strengthen yourself through practice and understanding to live your life with more appreciation for the experiences you have survived. Then you will have no need for the methods which keep you numb and oblivious. There lies triumph and freedom.