Hi cat-bee and welcome to CD.
I'm not an expert at this and don't have any great words of wisdom, but if you find that the going gets tough, then get on the forum. There are some absolutely fantastic people ready to show support, and I've found it a great help.
Take it one day at a time, and reward yourself when you've been doing well (lovely body lotions, scented baths etc.)
Oh - and keep chugging the water .....
Good luck, Lovely. Keep us posted about how you're getting on xxx