"Put the fork down, fattie" people are not tolerated here, period. So don't worry, you won't find that attitude here.
The only place you can start is the place you find yourself in now. Welcome to the forums
I do a LOT better when I plan what I'm going to eat in advance. I usually only manage to do that a day or two at a time, a week is overwhelming so if you can do that, I'm impressed.
I'd also like to add the 100+ ladies are a fantastic group, they start a new thread every month. You should check it out.