I learned a long time ago that spiritual progress isn’t about sitting in enlightenment. Contributing to the world we live in brings plenty of material for us to grow through. In particular, it is stated that we demonstrate our spiritual growth most by our ability to control our anger.
That doesn’t mean to suppress or deny it. Instead it means to make use of that emotional energy in a way that doesn’t hurt anyone. Taking a walk, drinking water, and channeling the energy into productive problem solving is much more fruitful and beneficial.
What do you do with your anger? How can you best utilize its’ energy? Ki to Happiness  isn’t controlled by anger, but instead has learned to control it.