HELP!!!

hi. im new to this site but i need some help. i have a lot of anger and i dont know why. its so hard to deal with but the worst part is i take it out on the one person i love more than ne thing. im afraid im gonna lose her if i dont get some help. things are screwed up at work because of it too. ive only been this angry lately. its happened before but i dont know what to do. its not fair to her and i feel horrible. i just want to be in a happy mood and enjoy life again. i miss that. i need help. plz i need some advice on controlling my anger. if im not being really mean then i slam around or kick and hit things and hurt myself. i badly bruised my hand and i broke my foot. plz help fast!!!