What is Self Improvement mean? It is the act or process of improving oneself by one's own actions. Individuals interested in self-improvement look for opportunities to make themselves better. They seek change to improve their actions, way of thinking, and their relationships with others. They seek to improve their lives, not only mentally, but also physically and spiritually. We may often think of this as New Year's resolution. You don't need to wait to ring in the new year to start making self-improvements, because it's always a good time to do so.