To be a star, you must shine your own light, follow your path, and don't worry about the darkness, for that is when the stars shine brightest.
Always do what you are afraid to do.
I believe that the very purpose of life is to be happy. From the very core of our being, we desire contentment. In my own limited experience I have found that the more we care for the happiness of others, the greater is our own sense of well-being.