Showing Cattle.Purebred(Hereford).?

Im thinking of entering one of out calves this year in the fair. I have never shown before but think this calf is an exceptional prospect. She was born in 2009, and is a purebred hereford. She was small since she is a twin to a bull calf, making her sterile so she will not be a breeder. So will that put a dent in anything since she can't be bred? She has a fully white face and is a beautiful caramel-reddish colour. Im wanting to enter her so i need to halter break her. She likes me since i bottle fed her when she was a few days old(basically an imprint). Pointers please. OH and its in september so i have alot of work to do. She is unweaned and has never been separated from her mother.Please hellpp