feeling overwelmed

feeling really overwelmed that I have let my self get in this position. The weight effects so many things in my life, health, activities, self esteem etc. . I have in the past lost weight only to put it back on and more I some how have to quit this cycle. I cannot enjoy life the way I want to because of this monkey on my back. Why have I let food take so control of my life ? How do I quit this cycle ? Is there a way to replace cravings for the wrong food for cravings for the right foods. I need to find away to remove food as being the craving at times of saddnes, bordeom and celebrations. . I go back to how have I allowed food "chips, fries, cookes, cakes to become such a core part of my life. I will not even look in a mirror and yet I cannot seem to stop the compulsion. I need alot of help here!!!