My dd was 4 in March. She has always got really hyper and when she does she won't listen to anything or anyone. I've had to drag her off ppl before anf if she's been playing out I've sometimes had to drag her screaming into the house to get her back in as she just says no I'm playing out or completely ignores me. Lately she is constantly saying no to things. I'll ask her nicely to do things about 20 times and she'll just not do it. She doesn't care if she gets told off she just smiles. I take treats off her and put her to bed early it doesn't seem to be changing anything and now her sister who is 21 months is copying her. What can I Do? I'm a single mother and i have no help at all from anyone