I can only tell you what worked for me.
Space your water out throughout the day and keep sipping, I feel less sickly that way. The first 3 days you do feel hunger and some people have carb withdrawal, I only had the hunger whilst my body adjusted. In order to take my mind off this, I treat myself to a hot bath, did a home facial mask, home pedicure etc. I just try and distract myself, usually by coming on here as eveyone knows what you're going through.
Try not to avoid every social situation otherwise you feel angry towards the diet. Remember it's a choice and if you have a blip, dust yourself off and get right back on again - try not to beat yourself up (I'm such a hypocrite for saying that - you should see yesterday's diary and you'll know why!) Speaking of diary's, think about starting one, that way you can record how you feel etc, always good to go back over when you're having a bad day to see that you can do it and to look at on a good day to spur you on at how well you are doing.
Have a look at the before and after pictures - they never fail to amaze me and motivate me. Above all, get posting and enjoy watching those scale numbers getting lower and your clothes getting smaller. The feeling is fab! Good luck xxx