People with an internal "locus of control"—who believe that they have control over their destinies and that their actions matter—are happier and healthier. But making changes in your life isn't as easy for everybody, and we need to acknowledge that more than we do.
You’re a good person. Your team members are good people. Clients ready to pick a fight don’t have to bring down your whole veterinary practice’s mood. Get some perspective, laugh about it, and get through it.