Most of us wish we could improve certain things about ourselves. Lasting change is difficult: Many of our habits are deeply ingrained, and certain core personality attributes may be immutable. But even the oldest of habits and character traits can be altered to varying degrees, as it's never too late to change; with effort and determination, it is possible to be the person you want to be.
Social comparison theory states that we determine our own social and personal worth based on how we stack up against others. As a result, we are constantly making self and other evaluations across a variety of domains (for example, attractiveness, wealth, intelligence, and success).