Is luck a real thing, and if so, is it possible to modify it? It's a tricky situation. There are moments when it seems like nothing but bad luck is happening. You did not get the job that you applied for. Your back hurts right now. Your zipper breaks. Your cat has a persistent vomiting problem. When you're confronted with failures big and little, it can make you feel as though your life is continually going in the wrong direction. Even if you...