It does... trust me!! I've just had my second weigh in last night. The first few days are not easy, as your body adjusts... but if i said i've lost 21lbs in two weeks... you will apprecaite it is well worth the struggle.
Keep your chin up and pamper yourself to get yourself through the first few days... once your body has adjusted (3/4 days in) you will start to forget about it. Have nice long baths etc to keep your mind off things and carry your water bottle with you everywhere. I found that buying a 1 litre sports bottle of water (like volvic with sports cap) makes 4 litres a lot easier.
If you crave something to chew on... try some of the recipes on here for what you can do with the foodpacks.
If your feeling low... wait a couple of days and see if you can have a pop in. I did in the first week, and my counsellor chucked me on the scales. I had lost 6.3lbs in two days... gave me the incentive to carry on and get through the hard days.
Lee-Anne