Self-improvement can involve improving any aspect of the self—for example, personal qualities, skills, and even the roles we play (like husband or wife and son or daughter). When we start thinking about self-improvement, it can be helpful to be strategic about where we put our efforts so we don't waste time on the wrong things. Some aspects of ourselves are relatively changeable and some aspects are pretty fixed. So, we're best served by focusing our efforts on the parts of us that are the most changeable.