Well, I survived it, the root canal. I cried the entire time, tears leaking out of my pinched eyelids, which I kept tightly closed throughout the whole procedure. And the relief was so strong at the end that I sobbed for a full two minutes, still horizontal and shaking in the dental chair. The assistant had to tell the endodontist that I really was okay, just letting out the pressure that I had been holding inside, which was entirely true. But honestly it was surprisingly not as bad as I had anticipated once the laughing gas kicked in and the endodontist had given me five extra shots than normal so that I would feel nothing.
When I think about how badly I deal with these kind of situations I realize that this is why I was never meant to go through pregnancy and labor.