This isn't meant to sound egotistical. Purely for the sake of general well-being, we must accept ourselves. We may not particularly like the way we are, we might wish we were different; however, the reality is we are not. We are who we are and the sooner we accept that fact the sooner we can enjoy this one short life that was given us.
One life. One life! It wasn't meant to be lived wishing for something different.