Hi Noreen, what a good idea. here's my two penn'orth. As John B said earlier, get used to the sound of your own voice, AS RECORDED. I am sure you are used to your recorded voice but many hear themselves for the first time and just don't like the sound.
Have a set prepared as it looks like you have.
Have the words in front of you as a comfort blanket if nothing else. Enbloodyjoy it. Be happy that you are doing it at last and really go for it.
I'm looking forward to the result.
Andy