Shame on me

I binged again. Ate way too much sugar. Now I have a horrible headache and I won't be able to fall asleep for a few hours. Why do I do this to myself? Why do I allow myself to suffer for years for just a few moments of satisfaction? 

Will I ever be able to answer any of these questions?

I'm caught in a vicious circle. I'm eat because I'm depressed. I'm depressed because I'm fat. I'm fat because I eat. I have to find the nearest exit out of this never ending highway.