Most of us REALLY like to try to control life.  We like to try to control people, places, things, outcomes, and ironically this need to control leads to a great deal of suffering, anxiety, and general discontent.  Why?  Because the world is completely impermanent, therefore, we have zero control over all of the external events.  The best thing we can do if we wish to attain peace, happiness, and freedom from anxiety, is to let go and rest into acceptance.  If we can also cultivate strong mindfulness and awareness of all objects arising within our minds, we can generate a significant amount of peace.