Seven day fast kick start

I'm starting a seven day fast: water, coffee with zero cal sweetener, and cigarettes will be my staples. I really need a kick start and can not handle this on and off business anymore. It's taking a large toll on my emotional stability, case and point, last night I went to the pantry and while trying to convince myself to walk away empty handed felt on the verge of tears and tugged my hair as hard as I could. Now of course this is not an unusual struggle but normally the stress and conflict is greatly internalized. It's all logical thought and expression not raw emotion and outbursts. I have to get control of my eating before I can get control of my emotions.