10 yo DD is constantly hitting, kicking out at her siblings (7 & 4) and when we ask "what would you do that for?" she replies "x was annoying me". They could just be sitting colouring, or on some occasions are annoying her. She doesn't think that it's ever her fault, and that x is to blame, just by existing it seems! Tonight I had a talk to her and said that as she was not behaving in a mature fashion for a 10yo that she is losing those things which come with being a 10 yo, so away went her phone and her make up, nailvarnish (she just plays with it, looks like a clown but thinks she is grown up!). She didn't bat an eyelid.
We have no idea how to handle her temper, her attitude and her violence any more. This is not new, it's just more of a problem now because she is so much bigger.
We have tried reward charts, tried ignoring it and letting them sort it out, but then she escalates until we have to intervene for safety, we have had parenting courses, nothing seems to work. We are really at the end of our tether.