Defiant 11 year old- not sure I can take it anymore!

How to react depends a lot on why he is so defiant. My daughter has oppositional defiance disorder, so I can totally relate to the defiance. I can't stop the defiance, but I try to set it up where it is in her best interest to comply. I try to make it her problem. Examples: If she is being mean or cussing at me, I make her go outside and do it. I can't stop her, but I tell her to cuss at the trees, they don't mind. If she pees on my clothes, she has to do some of my chores during the day because I now have to do extra work. If she breaks something, she has to do chores to earn money to replace it, and until she replaces it, she gets nothing costing money because she is in debt. Stealing is a tough one - I would remove anything valuable because that is tough one, so just remove the opportunity. Just my thoughts.