I need a force field

Its about good, over coming the evil, The devil is always in your face, I found a way to use something wrong that leads to everything that is right, Love and happiness, Love comes easily from me, I wish I knew why happiness avoids me in life, that's why I write and sing for 3 minutes at a time the dark turns to light, I guess my willingness to bring others happiness is a curse im willing to live with, That's my personal sacrifice ( if your happy im happy , if you sad im sad ) so ill sing for you to fix us both