I hope your doggy remains OK. You definitely don't need any sadness from that adding to your current challenges.
I think it is very common to need a good amount of time to adjust to a new therapist and/or doctor. It has always taken time for me to. There were many cases when I'd quit a new one after the first session. I did eventually tell myself to hold off and give them at least a few chances. The latter was good because I often saw them differently after session 3 or 4. Plus, I know I, and others, need to develop a comfort in new relationships. Truly, the patient tdoc/pdoc relationship is such an intense one.
You can get through that one hour alone, Miguel'smom. You can. Maybe consider planning something for that hour? A special movie/TV show, bake something, write, draw, or something else that focuses your attention on something positive?