Preparing for next week
As I've already mentioned upthread, it's really, really, really important that you prepare and plan ahead for a low carb way of eating. Not just for week 1 but on an ongoing basis.
It is, though, especially important to make sure that you're fully prepared for the first two weeks of Bootcamp so that you don't end up in a position where you haven't got anything appropriate to eat, or that you have a house/fridge/cupboard full of high carb things that will tempt you to cheat.
THIS IS A VERY UNFORGIVING WAY OF EATING!
I'm shouting that because it's important that you know what you've signed up for. Anyone who's done it before will, I'm sure, back me up on this 
It's not like low calorie or low fat eating where being 'good' (hate talking about food like that, but YKWIM) will compensate for a 'bad' meal earlier in the day.
High carb eating = insulin release = laying down of fat. If you have a high carb lunch your body will not undo this at dinnertime if you eat a low carb meal then.
So make sure you have planned your meals - and especially meals during the day/at work, or if you know you're travelling to a meeting - and shop accordingly.
Ideally you should also do some reading about low carbing to get your head around it - and also learn more about the general health benefits of a low carb/high fat diet beyond just weight loss.
And, in order to try and avoid or minimise carb flu, which some of you may suffer from, try gradually running down the amount of carbs you are eating from now - if you have carbs at every meal, try making one per day very low carb (breakfast is a great meal, as it's so easy to make this zero carbs - eggs, in any form, are a brilliant virtually zero carb option)