Vanessa, 51, really hopes that the judges don't criticise her too much as she will be trying her best when the show kicks off on Saturday (7 September).
She says: "I'd like them to say that I tried hard and that I mastered the dance and that I don't look like a fool.
"I don't want them to say that they are affronted or disgusted or appalled, that I don't look like a tugboat in full sail, that I don't look like a bull in a china shop.
"I want them to say that I look like a dancer dancing. If they say that, I will be thrilled to pieces."
Vanessa is set to become a grandmother for the first time and she's looking forward to dancing with the new baby when it arrives.
"I am about to be a grandmother for the very first time and thought it would be wonderful to acquire a new skill at this advanced age, and it would be lovely to dance with a new baby," she adds.
When it comes to rating her dancing skills out of 10, Vanessa struggles: "I don't know how to dance. I can't do any formal dances whatsoever," she admits.
"I can't jive, I can't salsa, I can't cha cha cha, I can't waltz – I just can't dance at all really so I'd have to say a one.
"Although from a one the only way is up…unless I fall over then the only way is down!"
Check out all this year's hopefuls in our gallery below:
Copyright: BBC Ray Burmiston