Watch the Godfather. It includes violence, loyalty, vindication, reciprocation and interpersonal relations pointers-sprinkled with just a tad of business. If that doesn't make you feel better, you can at least relish in the fact that you look better now then all of them do now!
enjoy some music--mabe something you don't Normaly listen to!
Have thoughts of the nice things you want to achieve in the future - will take some time
Life is too short for feeling down, go out and enjoy yourself
Browse some EP questions ..... always makes me smile