How do “normal” people eat?

I’m sitting here wondering how the heck non binge eaters eat. I just had dinner and for dessert I just finished a low calorie popsicle… but i have a packet of Nutella biscuits and butternut cookies in the pantry that I feel like absolutely devouring like a pig just for the taste of it.

I’m obviously working towards normalcy in my eating and habits, but i struggle to understand just how I’m going to live life normally when I’ve always remembered lusting for food like this.

How do normal people NOT think about snacks? How do they NOT finish a whole packet of biscuits in one go? How do they know when they’re full and respect it?

Just looking for discussion as I’m feeling really down about myself and I want to understand this more