So sorry that you're having such a hard time
I know it's hard to resist food-that's why alot of us are here-but somewhere deep inside yourself you've got to decide--what's more important, the brief satisfaction of eating a pizza, or a life of health and freedom to do any activity that you want to do.
If you *have* to have pizza, get the personal pan size and ditch the cinnamon sticks. Make small changes at first. It's not going to happen over night. I struggle everyday. It helps to get the goodies out of your house.
I don't know if you'd be up for it or not, but Paul McKenna teaches some techniques for food cravings that have helped me. When you're thinking about a food that you want, like pizza, imagine the pizza all covered in worms, maggots, gross stuff. The pizza's not so appealing anymore. He has a website if you want to check it out. (mckenna.com). Alot of why we eat like we do is all in our minds. We start obsessing about something and then we *have * to have it. If you can change your attitude toward food that will be a big step. Food is supposed to nourish your body, not make you miserable.
I wish you the best. Come here often for motivation and support.
You can do it, I know you can!!!
Best wishes.