Take phone books that aren't in use and find newspaper and every time you don't hurt yourself you can tear those up in pieces

if that doesn't work.... get some sculpture clay that is either white or terra cotta color, get paints that looks like your arm then go home and write a contract to yourself stating "I will not cause any harm until I have finished my sculpture of my write and hand. Then create to your hand/wrist area that you no longer are to do with yourself" take this contract with you sculped hand and say this is what I wanted to do. Make it has real as possible without using any blood only paint and brushes.
When I had this problem I was advised to do this. On the 5th sculped and then baked in a regular oven in a glass dish cool, then paint the color of your skin and paint everyt hing you see. and IF you want to hurt yourself do everything safely and slowly and hopefully this will get to really start working. Hey *Will you share with me how if made you feel. It's there crap, not your's, You will be cared and are cared about here imo only
Good Luck and let your body be beautiful
as your soul is!
your new friend Crew