I would add that the only way to change our outer reality is to achieve inward change. Sure, we can try to change people, places and situations by forcing, bullying, cajoling, and controlling, but eventually those efforts lead to exhaustion and frustration. Can you tell I'm speaking from personal experience here?!?!!
Nothing that we seek in life--serenity, happiness, joy, contentment--are commodities to be acquired elsewhere. They are all within us. Choosing to live from the well-being that is our innate state changes how we see and operate in the world. Someone really well-known said that heaven is within us. Living from that place of heaven within makes for a very nice outer reality!