Sorry you've had such rotten luck with doctors! Hopefully things improve with the next one

And please don't beat yourself up over making an appointment with the wrong person, we all make mistakes. We are only human after all.

Perhaps you could think of something to treat yourself with, once after phoning to cancel the first appointment. Then give yourself a bit of a break before looking for someone else, and then another treat of some kind once you have done that. Just a thought