I would say "Stay strong. You matter. You are not alone". My own disappointments, despite my lifelong endeavors to "do the right thing" have left me in a place I thought I'd never experience. Although my human weaknesses sometimes render me depressed, I will not allow my circumstances to defeat me. When I talk to anyone about my story, they inevitably comment that I seem so positive despite my new reality and I have to smile, because example is the best teacher, and in this way, I reaffirm the fact that we all matter.