I am glad you have managed to set up another appt for friday.
I can really understand the nervous, worry, anxious feelings which aproach as appt get closer. For me its a case of not cancling as I know if I do the next appt will be that much harder to attend with the chances are I would not ever be able to go back and with that in mind I have not missed an appt yet.
Hope it goes well on Friday
Take care
snow