Food Addiction possible TW

I never realized until I just did the calculation how bad my addiction for food and convenience was 😬😬😬 I feel absolutely ashamed of myself to admit this and I don’t know what to do I feel literally so lost now. Knowing how much I’ve spent just this year on DoorDash, mostly fast food, is sickening. How can I curb this behavior. I’d be almost $4000 richer this year and could have had that money in savings if it weren’t for my addiction. Advice please.