After some advice from anyone experiencing similar. We have a lovely DD age 9, when she's lovely she is wonderful and thoughtful but her default is defiant, argumentative and it's wearing me and DH down.
She's been challenging since age 4, more than the typical difficult behaviour I saw from her peers. Her behaviour ebbs and flows so we think maybe theres some ND behaviour going on, then she settles down again. It's been this continuous cycle ever since.
Anything we ask her to do is a battle, leaving the house is always draining, we ask her to get ready, we've tried not being prescriptive with demands but then she just lies on the floor or gets distracted, if we give specific instructions to help her focus she also doesn't follow them.
She is so argumentative her default position is no even if we said would you like to go to the cinema there would be arguments and annoyance from her about what film we are seeing even if it was one she wanted to see.
We recently spent some time with extended family with children a similar age and the difference in them was stark, they were happy and grateful and positive and my DD was sulky, moany, whingy and that's on holiday doing things she wanted to do.
We've tried everything, reward charts for good behaviour, giving her autonomy on things so she doesn't feel she's battling for control, consequences for bad behaviour, family rules where she's helped write them...nothing works.
Emotionally I'd say over trivial things she's very immature and her reactions are not commensurate with the events, but bigger things she seems to handle with maturity at the right level for her age.
I don't feel there is the usual parent/child dynamic as she acts as though she's equal to us!
She's bright, above age in all areas other than spelling, school just say her focus sometimes is off but other than that she gets great reports from school.
She's dimming a lot of the joy in our house 😕 any advice or insight we'd really appreciate.