Florence,
You are going to be GREAT! I know it.
Sending lots and lots of positive thoughts and support.
Keep us posted. It's a big relief when these sorts of things are over.
If you have trouble....remember you don't have to respond to anything instantaneously - BREATHE AND THINK.
Also, you can do almost anything for 30 minutes. Take it one half hour at a time and congratulate yourself every time that period passes.
Hugs,
MamaKit