Welcome!
My best advice is to hang in there! It's rough for the first few days--for me it was Day 5 on the diet before I woke up with no headache. But that passes and the cravings pass, too. I wouldn't have believed it had I not gone thru it. You will be amazed by how much better you feel...not to mention proud of good you will look. I've been on the diet since October 3, and I'm halfway to my goal.
MustangMolly (great name!) was right--it's best to view this as a new lifestyle, not just a diet. Yes, the first phase it super restrictive, and long term maintenance will be a LITTLE less restrictive, but you really can't go back to eating all the carbs, sweets, fat, etc. that you want to because the weight will just come back. That's been a realization that I've had to come to terms with.
And come here often..awesome support and great advice is always available!