My 4yo DS has uncontrollable temper tantrums nearly every day, where he screams and shouts, hits, kicks, bites, throws his toys around. These can be set off by the tiniest transgression from the way he wants the world to be. I have been using the tack of telling him his behaviour is horrible and sending him to his room until he can calm down. Trying to calm him makes him worse. I think the causes are boredom and restlessness and jealousy of his little brother (16mo). Last night he woke up at 3am and because I didn't hear him he had a tantrum in the middle of the night, woke up everyone and completely trashed his bedroom. All because he wanted the light off (he had asked for it to be left on) and I didn't wake up the instant he needed me to jump out of bed and turn it off. 16mo DS was terrified by the commotion. I am at the point of going to HV or doctor for advice even though reluctant to involve them as they were useless when I had PND. Any practical suggestions on teaching a 4yo to control his temper very much appreciated.