My 4.5 DD has always tricky and has never grown out of the Terrible Two's but recently she has become even worse and is completely out of control, running away from me when somewhere dangerous like care parks etc etc. She never ever does as she is asked or told, is continually whining or whinging, rough with her younger brothers including whacking her 1 yo brother over the head with a wooden spoon and laughing like a hyena as she did it. Nothing works, not the naughty step/time out or cuddling, or sending her to room, or explaining why something is wrong. She can be adorable and loving when she wants to but not very often. She is making my OH and me very sad as we feel like we are failing her by not being able to deal with her behaviour. She is in the kindergarten of a private prep school and he teachers say she is an angel but as soon as she gets home she turns into a demon child. I have no idea how to deal with her and make our home life a calmer and happier place to be.