I sympathise with you - & with myself.
My 4 year old DD1 is driving me insane. Arguing all the time, being bossy, moaning, whining. She's doing it now.
I think she is also jealous of DD2 who at 16mths is a little angel.
Today we had a battle about her getting dressed, which went on for about an hour.
What we found worked was having a tube in the kitchen, one that has spagetti in it.
When she was well behaved, something was went in the tube & when naughty, something came out. When it was full, she got a prize.
Unfortuantely the whole family, apart from me, has been ill & then our cat had to be put to sleep, so it's lost momentumn.
When I have the energy, maybe today or tomrrow, I'll be starting it again.
Agree wholeheartdly with the telling to do rather than ask.
It just takes so much energy, I am exhausted & don't want to do anything with her because she is such a nightmare. I have secret fantasies about packing my bags & leaving.
Good luck !