Hi Sam,
Good on you for starting it, the hardest part for me was the first week definitely, I'd have to agree with Niamh and Bex there. Its difficult with the hunger pangs in the first few days until you go into ketosis. The best tip I have for this is drink lots of water, it really does help. Please don't break it in this difficult time, if you can keep going during the first week then you will succeed. Also a hint is to make sure u use fibre clear to avoid constipation and the best piece of support is to use this forum, all the people on here have been so helpful and encouraging! Keep us up to date hun with your progress!