The best answer to this question is memorizing The Serenity Prayer and then really understanding and accepting it. Once you do, you will see how much easier it is to live in our sometimes chaotic world.
One may ask, how can we be serene when our world is imploding? Answer: Our task in life is to get to know ourselves, better ourselves and then be productive in this world, without concentrating on what others are doing.
This is because we are not superior or in control of others. Once we can embrace this, it is not that we do not take care of ourselves with regard to others, but without the desperate need to control. We will achieve serenity, which is a very crucial element with which we contribute our special God-given abilities and talents to our world.
Wisdom comes from both our successes and our failures. It comes from integrating all kinds of experiences into our hearts and souls. We are all capable of wisdom but many will not achieve great amounts of wisdom if one spends one's energy on worrying about outside pursuits or people. Worry, anxiety, perfectionism, low self-esteem and aggression are all signs of trying to control an outside influence. The more we surrender to what we cannot control, the more we feel free to naturally come back to ourselves thereby knowing who we are and what we were meant to do. Then we are able to find the path to achieve it.
Calm, patience and optimism signal one who has taken the Serenity Prayer and applied it successfully to their lives.
Being upset with others' behaviours takes away from the purpose we are here to achieve which is our own evolved states.
"God, grant me the serenity to accept the things
I cannot change; the courage to change the things I can; and the wisdom to know the difference."
We are socialized to concentrate on our outside environments, rather than learn and work on ourselves first. This is why we become frustrated.
We are consumed with people and things we could never control and waste valuable time and energy on things that are out of our control. We need to spend this much needed energy to fine-tune ourselves; specifically on learning how to respond appropriately.
Personal growth and especially learning how to react appropriately to outside stimuli is what defines us.