Loneliness Support Group
Loneliness is an emotional state in which a person experiences a powerful feeling of emptiness and isolation. Loneliness is more than the feeling of wanting company or wanting to do something with another person. Loneliness is a feeling of being cut off, disconnected and alienated from other people. The lonely person may find it difficult or even impossible to have any...

It truly may be best to go to a different dentist, not because of anything YOU did or didn't do, but because there may be a more compassionate one out there who can help you through the experience better.
Don't give up. There's nothing worse than toothaches / mouth pain. Do what needs to be done so you can be on the upswing of getting better!
Best wishes!