Blue Sue, you said so many of the same things that went through my head. But I would also echo everything that's been said here.
I too knew someone who didn't make it, and I also used the same surgeon he did. But I came through the surgery with flying colors. You really just have to come to the realization that there's not a thing in the world you can do about it. Get your affairs in order, have a little extra fun before your surgery, and go into it with the most positive attitude you can. Cry a little, scream, talk to your friends, and read the great stories on here. It's seriously what helped get me through the last couple of weeks before my surgery. And now, here I am almost 5 weeks post op, going back to work on the 1st, and already feeling considerably better in some situations than I did before surgery.
Is it going to be a walk in the park? Probably not. But are you going to look back at things once your surgery is over and you're back home and realize it was nowhere near as bad as you made it out to be before the surgery? Most likely, yes.
It's hard having known someone who didn't survive the surgery you're getting ready to have. I know how much it affected my thoughts and fears. But focus on the positive stories and even some of the famous people who had this type of surgery, and then just put your trust in God's hands or whomever you look to for higher support. You're gonna do great!!