We are called to love our neighbors as much as we love ourselves. How can we love others if we have only hatred for ourselves? If we can't look in the mirror and be happy with what we see, how will we ever look at those around us and see the good in them?
Do you love yourself enough to realize your shortcomings? Do you let them discourage you, or do you see them as an opportunity to become better? Do you love yourself enough to accept love from others? Do you let God shower you with His love for you, or are you too busy denying your worthiness?
Focus on the positive. Like who you are, and be who you like. Accept constructive criticism and compliments alike. Love others. Love yourself.