Count to 10 or 20 or whatever, till you calm down. Take control of yourself, its much more satisfying then allowing something to get you that mad. Dont do temper tantrum behavior like punching anything, not even pillows, try to change your reaction. For me, keeping control is more empowering than raging, and has no consequences. I dont remember what its called, but there is some therapy of thinking about a situation thats upsetting, and moving your eyes quick, left right, left right... I had a counseller do this on my legs, tap left leg then right, quickly while thinking or talking about the situation thats bothersome. Its purpose is to switch the side of the brain that reacts.. or something, but it seemed to work- I stopped doing it, but look into it. Be stronger than your anger.