Like the Psycho said, the right type of music can help alot in relaxing you, and getting your mind off of the stuff that freaks you out.
I'll say one thing: DO NOT go to alcohol to try to help the situation. I'm a fairly heavy drinker, and if I'm in a bad mood when I start drinking, I know to stay away from people, or I can go crazy pretty quick. Even if I didn't have anything against anyone around me at the time. Alcohol can also worsen a depressed state of mind, to where you may even consider suicide. So unless you already know how to somewhat control your state of mind when drunk, DO NOT go to alcohol as a solution for your problems.
Even though I don't smoke pot myself, I will agree with whoever said to use it to relax and get out of your depressed state. I've seen it totally settle people down and just make them chill out, when they were ready to go nuts.
That's about all I can say, dude. Hope you find some way to work this out! Good luck!