It is kinda strange when it finally hits us that the surgery date is "real." I guess this realization hit me in stages, but oddly enough, it really hit me hard in the final week.
Here's an ace in the hole if you ever need it. Surgeon's staffs are experts at handling fears and doubts. Not that you need to, but know you can put in a call and explain all your fears, and they will reassure you. When I had that period of fear in the week before my surgery, a staffer at my surgeon's office reminded me of how cool my surgeon was. Just hearing the words out of another person's mouth did it.
But ... this is all part of the good news of your upcoming surgery.