She turned 11 last Friday (23rd May) and she's become a nightmare!! Answering back, having major strops over the slightest little thing and just generally being argumentative!
You can't have a decent conversation with her as it descends into her shouting and storming off to her bedroom, slamming her door for good measure! Oh and she thinks that she is right about everything!
Her poor 6 year old brother also gets a hard deal from her, she used to spend quite a lot of time with him now she shrieks at him to leave her alone.
I am tearing my hair out, what has happened to her?