Hi newlib
It's kinda rough, isn't it? For me, what helped more than anything, was putting a handful of chips on my lunch plate on N days, when I wanted them, which was pretty often at first. Every day, and sometimes with lunch and dinner. Also, I pigged out on an entire bag of potato chips, on one of my early S days. I planned the "event" and even posted about it here

and when I was done I was SO grossed out. But guess what...that got it out of my system. I still have the occasional fistful of chips with lunch, but I have NEVER AGAIN consumed an entire bag of potato chips, and I won't. The memory of my lips, coated with salt and grease, and actually painful in the corners...blech.
Another thing that just now came to mind is gratitude. Maybe butter and chocolate, potatoes, bread, and pasta are gifts, to be received as blessings, with joyful and grateful hearts. If we say "no! I can't have THAT!" to wonderful, delicious fettuccini Alfredo, are we casting aside a gift that was intended to bring us great pleasure and joy? And if we see it as a gift, can we relish it, putting each bite in our mouths, and really taste it, enjoying all of the deliciousness one bite at a time, not shoveling it in, but savoring it.
Anyway, welcome! This way of eating has brought me sanity about food for the first time in my life, and I now can spend a whole day at home with my fridge and pantry and only go in the kitchen to prepare meals. It is WONDERFUL.