Sorry to hear this. I have suffered from lots of anxiety and had at one panic attack and it is a dreadful condition to be in. Sounds like you are really trying. Also sounds like you might benefit from some kind of anti-anxiety med pronto while waiting to be seen.

The only thing that comes to mind is maybe going to some sort of doctor who is available and who can at least prescribe a small amount of medication to help you manage temporarily. We have urgent care clinics where you can just walk in.

The only other idea is to make use of a crisis hotline. I used to work on one; the people are trained pretty well and are ready to listen. You can call a suicide hotline even if not suicidal. They also are trained to handle crisis calls and can be available as long as the line is free.