I know a little of what you mean. All through my 20s I never really ate breakfast and then CW finally rammed into my head that I MUST eat breakfast. So when I started PB it was sort of hard to shake the whole 3 meals a day thing. But in experimenting with stuff to eat for breakfast on weekdays I wound just skipping breakfast again because I really found I wasn't that hungry.I took stuff to work to have for breakfast but just said to myself I would wait til I got hungry before I ate, and that wasn't til lunch time. Finally I just stopped worrying about whether I was eating breakfast.
I would suggest first you just eliminate the option to eat snacks. Don't take them, keep them around, whatever. Just eat meals that satisfy. Then experiment with skipping breakfast. Or eat a good breakfast and see if you really need lunch. A lot of times on weekends I eat a nice breakfast and then am not hungry til dinner. I just don't really think about food much anymore unless I'm actually hungry. It just took some time.
Breathe. Move forward.
I just eat what I want...