Hello. My daughter is 4.5 years old and attending preschool. She is an angel there but terrible at home especially at night time. I can remember when the switch happened from her being a good little toddler and to just loosing it. Over the summer, I gave birth so I was not able to pay attention to her that much and I think she has reacted because of that. I try to spend just us time together but the behavior still shows up. We are having bad days at least 2-3 times a week, not sure if that is normal. When she is good, she gets iPad before bed for a few minutes but when she is bad and as a consequence looses her rewards, she then will act out all the way. She keeps running out of her room and thinks it funny. I try not to let it get to me but when it does happens and I yell (which I am working on not to) she will just copy me.
Please help. Also, when does this phase end. I have tried taking her toys away and time outs and nothing is working.