Crash,
Well, it really depends on my mood. If I am angry at everything, I listen to really fast dance music or heavy metal music (Metallica). I usually listen to it in my room by myself. I participate in an activity that I loosely call 'dancing.' It move my hips, leg and arms in a uncoordinated fashion. I looks like a standing epiletic seisure. I am certain that it is a benefit to the human race that I have social phobia and do not frequent clubs or ballrooms, otherwise, I am certain that I would have been the cause of many fatalities.
Otherwise, when I'm doing my homework and I need to calm down. (I usually stress over my work! I'm a perfectionist.) I listen to classical music (Vivaldi- The Four Seasons. This is my favorite. You already probably heard it but just don't know.) I'm especially inclined to listen to instumental guitar. I like that a lot too. However, you realy got to find what you like. Have you tried jazz? Country?