Hi Dannielle, good luck! I had a bad day 3 and a not quite so bad day 4, but day 5 and I'm cruising, so just push yourself through the first few days.
I've personally found that feeding the family isn't a problem because I can still enjoy cooking without eating it - they're separate activities. Even managed a roast dinner last night without having any. The big difficulty has been the automatic grazing - a few times I've had to stop my hand as it was on it's way to pop a scrap of chicken or a pinch of cheese in, all by itself!!! Just enjoy doing their meals and seeing them enjoy your cooking, and my sneaky trick is to do the washing up while they're eating, so it doesn't play on your mind and you get to feel all worthy instead!
Wishing you all the best!