M.B.
Oh what the hell. I actually found the question you're referring to.
Here's MY take from what you shared: Your 5 year old child is throwing more tantrums than a 2 year old, won't listen, is beating up on the dog, throws toys, etc., and you want to just TALK to her about why what she's doing is not acceptable.
Momma, there's your problem right there. With kids you HAVE to be short and to the point otherwise you lose their attention and all your talking to her does nothing.
I TOLD you my suggestion would not be popular, but I stick to it. Kids NEED clearly defined boundaries, with easy-to-predict consequences. Without that, they become out of control brats like what you describe about your daughter. If she throws a toy, then XYZ happens EVERY. SINGLE. TIME. If she hits the dog, then XYZ happens EVERY. SINGLE. TIME. And so on and so forth.
Negotiations are for adults that have the ability to predict possible outcomes. It really sounds to me like you're trying to be her best friend out of some misplaced guilt over something. You can't do that, she'll take advantage of you every time, and will be an even bigger unholy terror when she's a teenager, and then it will be too late to instil discipline in/on/to her.