When you love to do something, that means you have a gift for it. And when you are gifted at something, you have to do it. You don't have to quit your job and mortgage your house, but you do have to give your gift a careful look. If you don't pay attention to what you love, you could overlook your greatest gifts!
Song is not a luxury, but a necessary way of being in the world. If you are cut off, in pain, estranged, numb — sing, give voice to anything. It needn't sound pretty. Simply, bravely, open despite the difficulty, and let what is in out, and what is out in. Sing and your life will continue.