Based on the work of Richard Ryan and Edward Deci self-determination theory is the ability or process of making one’s own choices and controlling one’s own life. It is very closely linked to motivation.
Self-determination is a vital piece of psychological well-being; as you may expect, people like to feel control of their own lives.
In addition to this idea of controlling one’s own destiny, the theory of self-determination is relevant to anyone hoping to guide their life more.