Welcome and good luck. I am on day 11. The first week is terrible so if you can stick it out you will be fine. Its mind over matter, and just try to keep focused. I must say, my first week I drove to the chemist to buy ketone sticks (not sure what they called, dip sticks to see if you are in ketosis). Anyway they didn't have any, but I was desperate to find out if I was in ketosis, my breath was fine and I was still starving! In the end I found this site and was saved! This is a really tough diet and you are very brave to start. Keep a positive mindset and just think of the skinny you crying to get out....
Seriously though this site is great for when you are really finding it tough, the inspiration you can get from some of the successes people have.