To be reasonable, you must be able to reason. Our ability to reason is what makes humans humane. And when we abdicate our frontal lobe cortex’s responsibility to interact as adults with others, we devolve into our reptilian brains. And nothing good happens in the Jurassic Park parts of our perceptions.
In life, if we aren’t intentional and vigilant, we think we’re going where we’re going, but we're headed to an entirely different destination. No need to get angry at others or beat yourself up for your mistakes. Just take control of the stick, and rightly orient yourself. The good news is, you can forgive yourself and enjoy where you are until you get on the proper course. After all, you are the pilot of your life.