Hello Pedngirl
I agree with everything Jambro has said. Focus on the goal but set yourself daily goals. I am on day 9 today and am taking it one day at a time. You will be absolutely fine on it. Drink lots of water, green tea and coffee. I have a porridge for brekkie, shake for lunch and then a soup at night so I feel like I'm having meals. I always make them up with more water than you're meant to and I ALWAYS eat my porridge and soup with a spoon as opposed to drinking it as it makes it last longer and I feel like I'm having a meal. I also put pepper and/or chilli flakes in my soup (my CWPC) says it's fine to do that.
Try on an item of clothing you have that's maybe too tight just now and then try it on in couple of weeks. Alternatively, buy yourself an outfit you'd love to wear and leave it hanging on the outside of your wardrobe as thinspiration! Be realistic in what you choose though, ie. if you're a size 20 now, don't buy a size 10, buy a size 16 and focus it on reaching a short term goal first. It'll make it easier to achieve and is a great excuse for buying more clothes in smaller sizes as time goes on!
Try not to focus on food and if you find yourself thinking about it, have a bath, read a book, put a face pack on, look online at clothes, paint your nails - anything to take your mind off it.
Hope this helps and good luck!