I'm sorry that you've been feeling left out. It's not a good feeling, especially when you badly need someone to care.
I worked through a great deal of my anger with martial arts. It was a sanctioned way to kick the crap out of someone, so nobody complained. It's been quite a while since I've done it, however, and the anger is starting to return (albeit to a much lesser degree). I sometimes go down to the basement and hit my punching bag for a while, especially if I know beforehand that my wife and I are going to have a "serious conversation". Sometimes I'm too tired to put up a real fight with her if I've already had a good go at it.
I hope you can find a constructive way to vent your rage. You can't let it destroy you or the people around you. You just can't. I think you should try to get rid of it daily if you can.
If a man's character is to be abused, say what you will, there's nobody like a relation to do the business.
- William Makepeace Thackery