Read up as much as you can on this forum and post often. I read a book called 'Under the influence' that helped me a lot in the beginning. Here are some excerpts from that book:
http://www.soberrecovery.com/forums/...influence.html
Whats your plan for when you leave the hospital? Do you live alone or with family? In either case try to make sure that there is no alcohol in your house for when you return. Remember HALT( Hungry, angry, lonely, tired) every time you crave a drink. There's a good chance you are also feeling one of these if you are craving. If you find you are hungry eat and it will make the craving easier to handle and so on.
I'm sorry you are in this situation but at least you are detoxing safely and off to a good start. I remember how scared I was withdrawing. Hang in there and keep posting.