1st night of practicum

Hi all, I am posting this more for me than anyone else but I am sooo nervous right now. In 1.5 hours I will be starting my first night of practicum and I really do not know what to expect. I will be conducting my practicum in the MICU of a large teaching hospital and I am really starting to wonder if I am ready for this. I have maintained excellent grades throughout my program and my clinical instructs have given me wonderful evaluations but I begining to wonder if I am truly ready to be precepted. In clinicals it was so nice to have my fellow classmates around just to talk to and help go over situations that came up but now I feel like I am all alone. I was instructed to call my preceptor at the begining of his shift (he started at 7P) and when I talked to him he seemed a little surprised that he was assigned this role. He told me just to come in at 11P so I could get 8 hours in today. He did seem rather laid back, so I am hoping that he will be patient with me as I continue my learning but who knows. Anyway, thanks for listening...er reading!! Wish me luck!