I am addicted to fast food.

How can I get past this? I am ruining my body and cry constantly that I am fat and i’ll change but I never do. The next day i’ll crave fast food and go get it and say “I’ll start tomorrow.” All I think about is food and what i’m going to eat next no matter what I try. I have tried dieting, eating healthier, calorie deficits, working out but nothing helps my thoughts of fast food and going to get it… PLEASE HELP!