It is of practical value to learn to like yourself. Since you must spend so much time with yourself you might as well get some satisfaction out of the relationship.
Believe in yourself! Have faith in your abilities. Without a humble but reasonable confidence in your own powers you cannot be successful or happy. But with self-confidence you can succeed. A sense of inferiority and inadequacy interferes with the attainment of your hopes, but self-confidence leads to self-realization and successful achievement.