Why would you want her to be calm, you should be happy you're dog is exited to work! In my nosework class, there were 3 dogs who were just all over the place, very hyper. (Rory was one of them) After a few more classes, they all still acted 'wild' but they were working and enjoyed it! As long as Deja is successfully finding the odor,her being exited shouldn't be a problem…..
It seems like you learning differently than I am though. I'm doing Nosework (dogs find a scent in a box) you are doing tracking.
She seemed to do a fantastic job in the video! She seemed very focus and exited, not really crazy. (I know crazy, that wasn't it.)