Up until right now, I belived I was special

But
@Larissa_NY said this in a thread I'm following:
If you want salty, fatty, high-calorie food you're going to have to learn to stop eating it while you still want more.
I have chosen to mostly avoid typical "treat"/"junk" food because they don't satisfy me, or, any reasonable amount doesn't satisfy me. When I start, I just want more, I get frustrated if I can't continue, and I can eat very large amounts before I start to feel sick. If I don't start, I still want it, but it's just a
want, it doesn't feel like a
need, or that I can't control myself.
Many of you eat treats (candy, chocolate, ice cream, cookies, chips) often. I understand that it won't impact overall nutrition or calorie goal. I'm more interested in what it feels like. Are you content after - say - 100 calories worth? Or do you have to force yourselves to stop? Does the want decrease after you've finished?
I want to hear all sides