You'll do fine. Just remember, any new job is tough. You have the basics, but the first couple of days feels as if you're in a foreign country, the med passes seem as though they'll never end... and you may even wonder if you really did go to nursing school or was it all a dream?
How will you ever remember all those names and faces? Just take a deep breath (several during the shift), remember it's "experience". Don't rush, you'll develop your own pace and way of doing things once orientation is finished.
If nursing is your passion, you'll succeed. Even when you don't think you can walk that hall one more time, one foot in front of the other.. one step at a time.
Good Luck, have faith and confidence in yourself... you'll do well.