Bad Mood

Of late I have found myself to be in a bad mood. I'm not sure what is promoting this bad mood but i don't really like it. I don't like it because everyone gets mad at me when I'm in a bad mood but I don't really know what to do to change my mood. I don't like being angry and I'm hoping that one day i might find the source of this anger so I can work on fixing it. If I don't find the source though that's cool to i guess, I don't really need to be happy. Just as long as everyone else around me is happy.