Yikes! Well... first of all congrats...
The best advice I can give you is not to go postal and run amok during the first few months. The first six months or so SUCK. The second six months are better but still kinda sucky. After that it improves dramatically. So there is a light at the end of the tunnel. The biggest thing I was not prepared for was this - people tell you that being a parent consumes every minute of every day. I did not really believe them. That was a mistake. It will absolutely and completely change your life. There is an adjustment period while you get used to that. The adjustment period is difficult but, once you get through it, you will adapt fine.
A few odds and ends:
- If you don't have a Pack n' Play yet, get one.
- If your doctor tells you to feed the baby certain amounts at certain intervals - ignore him and maybe poke him in the eye. Feed on demand. If the baby is hungry, feed him/ her as much as s/he wants. Both the baby and you will be much happier.
- The doctor will tell you not to give the baby real milk until a year, but you don't really need to wait that long. 9-10 months is about enough - try it out and see what happens. Worst that will happen is the baby will puke it back up.
- Get ready for lots of puke. Babies puke all the time, and unlike adults there is no warning. They just spit up and then go right about their business. We had a bib on ours all the time to keep their clothes from getting messed up.