You CAN do it.
This is my second time (1st was for wedding, this time is to shed 2 x baby weight!)
I have Atkins bar for breakfast, salad leaves / sandwich spread filling on top of it dressed with oil, vinegar, lemon juice and cherry tomatoes. Also have tuna mayo, salmon or chopped cooked ham and grated cheese.
I also have 3 egg omelletes cooked with shallots.
Snack wise I have cooked sausages, cooked meats, cubed cheese, pistachios and laughing cows in my fridge
Tea is whatever DC's and DH are having, minus the bread, pasta, rice or potatoes - you have spag bol without the spag basically! curry without the rice, fajitas without the tortillas.....it tastes the same I promise, and think how good you will feel!
Just have waay more veg than usual.
Also Greek yoghurt is gorgeous, you can have a good couple of tablespoons every other day I think, and I drink decaff coffee (if out and about in a cafe I have cream in it, but at home I have milk) and tes, diet coke, water and sometimes cranberry juice. And white wine
I also have a treat almost every day - cake, kitkat, cadbury's flake dessert!! I have lost 2 stone since 3rd January and one dress size.
If you feel like you have got bad breath get the chewing gum out (will make you hungry though)
Stick with it - this lifestyle seems to be working for me