Whenever you start to get worked up over having to go, maybe it will help to visualize yourself on Tuesday with the dentist visit behind you. That's what I do when I am dreading something. In my mind, I fast-forward beyond the event, knowing that, no matter how bad it is, I will survive. Of course, I know that wouldn't work with MY particular phobia, which is to be closed in a room with wasps, hornets, jumping crickets and grasshoppers, bumblebees, and other assorted flying, jumping, horrifically ugly insects. That's MY phobia. The thing is, in life, you must confront your phobia head-on. I only have to deal with an occasional wasp or bumblebee in the backyard.
Good luck to you, yorkie. Take heart, friend, it will soon be Tuesday. :-)
Thank you, Lori. (((HUGS!)))