One of the most important reasons to increase your self-awareness is so you can be happy. There are a lot of people walking around who insist they're happy but who really are hiding a lot of turmoil just under the surface. Being happy means that the various parts of your life are in balance rather than conflict or tension. It's nearly impossible to feel genuine happiness if you have areas of your life that always remind you that all is not well.
A big part of self-awareness is working on your warts by taking an honest look at yourself. Heal the parts of you that create tension in your life and you'll be able to feel joy like never before. It may be difficult or painful at first, but the long-term rewards are immense. What will you do to use self-awareness to be more happy?