It has got to the point where I don't know what to try next, and what I am doing is way off the mark.
She has always been one of those babies/toddlers/children who talks incessantly and indiscriminately at anyone who will listen (and those who don't). She is bright as a button and exuberant in personality. Her teacher says she is chatty but delightful.
At home we have always had a problem teaching her about when the right time to talk is. We have tried pointing it out every time she interrupts, ignoring her, telling her off, etc. but despite being able to learn phonics and sums at the drop of a hat, she cannot seem to learn social cues. As she is getting older, it is proving more of a problem because as well as interrupting and taking over conversations, she also has no concept of when she needs to stop replying, particularly after being told off. As I said, we have tried explaining and pointing it out until we are blue in the face and it makes no difference.
DH and I are now at the point of being snappy and shouty with her, and I hate it. I don't know what to do next. It doesn't sound bad here in writing but she takes over our lives, our brains and leaves no room for thinking, planning, conversing, enjoying the day. She bombards us all with questions and plans and agendas and noise constantly. She won't take no for an answer and will negotiate to the nth degree. When engaged in a game or activity (or accompanying us shopping, etc.) she is whistling, singing, wailing, screaming, or whatever seems appropriate to her; there is no quiet other than when she is reading, which has been a godsend since she started reading by herself. We have two other children and they obviously have to compete with her so our heads are mashed. The baby has picked up on the snappiness and now shouts the girls' names rather than speaks them. I feel like I am in a vortex I can't get out of. I have bought a copy of siblings without rivalry to help deal with the bickering better but what can I do about my 6yo? I love her to bits but really don't like spending time with her. In fact, I think the ignoring tactic has affected our relationship since I have spent so long ignoring a behaviour that is so ingrained in her that it has become a normal part of our interaction. She has a superior/disdainful tone which grates, but I realise this probably comes from me trying to deal with her. I don't know what to do to mend it all.