Hi - rather sad for you, and for her, especially with Christmas coming up.
Is she in Yr 3 at school, and what's her work, behaviour, and friendships like at school?
I was a TA and also voluntary helper in schools for twenty years or more. So I was used to children who couldn't behave very well at school, but not very much experience of it in the home environment.
But I always think children don't really WANT to be in trouble all the time, or upsetting family or teachers. Often some situation has unsettled or worried them, and they don't have the experience or vocabulary or confidence to talk about it.
How long has she been behaving like this; has anything changed in her life; are there brothers or sisters at home; what toys, dolls, games etc does she have; does she see too much TV or computer games etc?
You say you were 'just about to play a game' and SHE wanted to control the rules. Wouldn't it be easier if you gave in to her on things like that (which aren't really terribly important) rather than frustrate her and have a big confrontation?
Often at school teachers and TAs would overlook minor poor behaviour incidents, with children who we knew were likely to 'kick off' and save the discipline for more important matters.
What is her speech and communication like now she is older?
If you can answer some of these questions for me, I'll see if I can think of how we might be able to help her a bit.