I need to rant.

Sd11 is driving me nuts. I get annoyed the second she walks in the room.

she argues with EVERYTHING I say. Tries to convince me and everyone in ear shot that I am wrong, and she is right, even when she's is saying the exact same thing I am. She just wants to have an argument and create conflict. 
she has become more temperamental. She turned a play fight between two kids into a real fight by inserting herself into the situation that had nothing to do with her. Then when the teacher came over, she threw a temper tantrum and stomped her feet. She ended up stomping on the teachers foot and broke the toenail off. This was not intentional, but happened because she was having a tantrum. 

she refuses to accept responsibility and keeps sayin "he was harsssing me" , referring to a boy who had been play fighting. I think she did it because this boy supposedly had a crush on her and she was mad he was paying attention to another girl (the girl he was play fight with). She saw him paying attention to someone else so she decided to be a drama queen to make people pay attention to her.

she has become self centered, argumentative, rude, and continues to act much younger than her age.

I've had it. She thinks she's a princess and I'm waiting for the day she realizes she has burned all her bridges and has no friends. I will have no problem saying "well what did you expect would happen!?"