Hello Sarah,
Personally I wasn't nervous. I didn't allow myself to be, because it doesn't help. When I heard my date, I didn't even gave it a second thought. I thought: Okay, nice. And went on with my days, weeks, months. Up to the day of the surgery I wasn't nervous. When I stepped unto the surgeons table I was really calm and had a big grin on my face

just relax, the surgery is something you won't experience. It starts after that. And then you will have enough time to be nervous. I would save it for after surgery.