Would really appreciate any advice. I have 3 dds ages 14, 8 and 7 months. My middle dd has always been quite hard work but has been so difficult the last few months. She doesn't listen, talks back, winds up dd1, scares Dd3, is rude, constantly asks for food, wont go to the toilet by herself, especially difficult with dp. myself and dp are just at a loss as to how to deal with it and don't help I think by issuing empty threats. What can we do it really is taking its toll on family life?