my dd who is 21 months old has severe behaviour problems. She will have up to ten tantrums a day if she cannot get her own way. Her behaviour consists of smacking, kicking, head butting, pulling hair, throwing herself on floor and beating her head against it. She throws her wooden chair across room, her toys are thrown. She still bites, but very rarely. She kicks the door, and screams constantly. We have tried numerous strategies from time out in her chair, ignoring her behaviour and giving attention to the person she has hit. Standing in corner. We always are very consistent in saying no and if she has a tantrum we never give in and she doesnt get her own way. When she calms down we always make her say sorry and give the person a kiss whom she has hit. I just dont no how to modify her behaviour.