I am not an addiction expert so I will not attempt to diagnose the issues in your life leading to over eating. However, I would say this; there is a difference between addiction to a substance/ food etc and using said substance to repress feelings or deal with life's disappointments. Most addicts have addictive personalities and as such, they are addicted to many, let's call them vices.
I'll take my fake doctors hat off and get to my main point. I think, in general, will can overcome. Whether it is quiting smoking, drugs or pizza, we all have the ability to will ourselves to overcome. I recently lost roughly 50 lbs in about 9-10 weeks through sheer will. Nothing more. No tricks. No magic pills. I simply sucked it up and percevered. Of course I was hungry. I craved pizza just like you. I just ignored the cravings.
There are other factors that are critical. Exercise obviously needs to be a part of your daily routine. You also have to retrain yourself as it relates to your relationship with food; how you eat, what you eat, how often you eat, how many calories, how food is prepared etc.
The point is you will never lose weight unless you truely want to lose weight. If you truely want to lose weight and get healthy, you will have to put in the work. There are no shortcuts.
Good luck,
D