When I was diagnosed 16 years ago, I had cravings, mood swings, and all sorts of changes going on. It's only natural as your body heals itself and adjusts to a new lifestyle. I can remember vividly how after about a month I had a new control of my temper, slept better, and had much less aches and pains.
Now, I have the added bonus of having to cut out other foods I love for other health reasons and am going through a similar situation, but I know I"ll get through it.
The best advice I can give is to go to a support group. Talk directly to people in your area that has already made the adjustments and learn from them rather than from making the mistakes by yourself. If I had done that my wife and I would've had a much better time and probably a quicker recovery. I joined a group 1 year after going gluten-free, so I speak from experience!!