Anger (mis)Management

I am a generally hate filled person. Sometimes it feels like I never lost the teen angst and it boils up from my stomach regularly. Sometimes it's something that annoys me from the news or someone said, or something I just didn't do right in my mind but it always takes the same path. First it starts by just holding it in, then it simmers, every once in a while I left off some of the steam by ranting to a third party, and then finally it explodes, never at the thing I'm angry about. This line of anger (mis)management is a trait I've always been conscious of but lately I've found another way that my anger portrays itself. It seems that the tone of my voice is consistently angry. This is more of an unconscious trait.