Most people seem to consider emotion, especially negative emotion, something that happens to them. Often the culprit is another person, or an event out in the world. We might think, "He said something that made me angry," or "I'm upset because my car has a flat tire." But try to view your negative emotions more like a repetitive behavior - you are practicing them. Anger, fear, sadness, envy - these are actions of a kind. And you perform them predictably, in response to specific stimuli.