What are some lessons that you as a parent have learned through practicing Buddhism?

I have two small children, 2&3, and they always test my patience and get me frustrated. I try hard but fail often. I was just looking for possible lessons learned from other parents that have been insightful in your parenting. I try to keep compassion at the fore front of my mind, but by the end of the day it’s hard for me not to let my emotions start coming through the mindfulness.