4 year old daughter suddenly having 30-45 mins tantrums when she doesn’t want to do something. Kicks, screams bloody murder, throws herself around to the point of hurting herself or me, will not stay in the time out room, calls us stupid and mean, tries to hit us, beats doors and throws things. We ignore these fits but have to hold the time out room door closed so she doesn’t run out and attack us or her siblings. Is this normal? She is acting totally crazy. What do we do? Reverse the lock and lock her in until she stops? We are desperate for help. Thank you.