I have been going through kind-of the same thing - I am bulimic but I was a compulsive overeater before the bulimia and I know how life-altering it can be. Please, you can get help, bulimia is something that I turned to and became from ignoring my problem, though I am now in a centre for treatment.
You have comulsive over eating disorder and there is an underlying problem there. Someone can help you, doctor, therapist... You won't be able to stop without help, I will tell you that now, you can't do it alone.
Please, get help and give yourself happiness again.
Hope you make it through, be strong, take care and good luck