Motivational issues, how to keep that feeling of 'I Can' ?

You always want to say you are going to do the right thing for yourself, and in my case I always fail.

I am a smoker and I am fat. I have tried quitting cigarettes, that lasted about 2 weeks. I even went on a juice fast hoping to change my eating habits. I lasted 10 days, and the first thing I did was go to Denny's and eat a huge breakfast. If anything it made my ability to say no, worse. On top of that, when I went on the fast, I smoked more cigarettes to keep me from eating food.

All in all, I have tried everything and it seems like the only time it works is when I have this rush of motivation. I don't get it often, and when I do it usually only lasts a few hours. On rare occasions it will last a week or 2, and once when I was 16 it lasted 3 months. It mostly happens right before bed, and I can never keep it going when I wake up.

Does anyone know how to keep it? This morning, I had the rush when I was putting on make up and saw my muffin top roll over my pants. I thought "I need to eat right, I need to quit smoking, I know its because I am bored, thats why I do what I do, but I lack the motivation to do something else to keep me distracted" This lasted about an hour, and then on the way to work all I could think about is how I am going to have just one cigarette, and maybe something yummy for breakfast. I stopped myself, but only because I didnt give myself time to go to the store.

I work full time, and have a 2 year old. I get tired, and all I want to do is be comfortable. Smoking and eating make me comfortable. I need to find something else that gives me the same relaxation, but something I can do anywhere, even at work.