The BBC Breakfast presenter is among the celebrities who will battle for the Mirror Ball Trophy on the eleventh series of the competition, which begins this weekend.
Susanna said: "The thing I am most scared about is forgetting the moves. I don't want to train and train and then forget everything!"
Celebrities haven't met their professional partners yet but Susanna knows what she needs from hers.
"I'm looking for someone who is very patient and who can just murmur in my ear when I forget the moves," she said. "I need someone who is going to gently encourage me. I hope I don't make anyone angry. I definitely need patience and understanding in a partner."
Susanna is no stranger to the dance floor, performing in Children In Need's Strictly Come Dancing special back in 2011. In fact, she won with pro dancer Robin Windsor!
Despite that, she apparently doesn't think she's the best dancer. "I wouldn't rate myself as a dancer. I have danced and I enjoy dancing, but I'll leave it to the judges to decide. Dancing gives you a thrill and a shot of adrenalin. I love it, but am I am good at it? I'll leave that for others to decide."
As for who her favourite celebrity dancer and moments of past series have been, she said: "Chris Hollins and Ola Jordan's Charleston, I could just watch over and over again. That was one of those priceless Strictly moments that makes you realise it is the most terrific fun. Natasha Kaplinsky was absolute perfection on the dance floor too."
Loyally, however, her favourite is her sofa partner: "However of course Bill Turnbull will always be my absolute hero, he was brilliant."
Strictly Come Dancing starts 7 September on BBC One
The Strictly Come Dancing lineup in pictures:
Copyright: BBC Ray Burmiston
Watch the first trailer for Strictly's new series below: