I'm gutted. 17yo dd got up in a disgusting mood. Opened her presents at 10a, then buggered off back to bed. When she got up later she tried to pick a fight with everyone. She demanded that my 13yo put everything away in the bedroom right that second, (something I generally leave until Boxing day as Christmas day is a holiday) when she didn't jump up straight away, the 17yo threw a shoe at her eye, hurting her and making her cry. I went in the room shouted for it all to stop, 17yo went on a complete meltdown screaming at me, calling me names, then trying to push me out of the room, as I was taking 13yo side (as usual, in her opinion) not true. I told her that as I treat her like an adult, she needed to start behaving like one. I went back down to carve the turkey and put the dinner out whilst crying over it that a day I had prepared for, for so many months had been completely ruined. I'm so disappointed by her behaviour. Somehow it was all turned around to be my fault because she said I made her cry, but it was simply a case if her completely losing her temper! My 13yo didn't fight back or retaliate at all. She's been in bed watching netflix since and still hasn't eaten.