Honestly, it's old advice, but the best of all is--
so don't argue.Just endure the screaming fit without comment, or-- if you must-- point out that the behavior is rude and socially unacceptable, though you understand that she is upset... it's not really fair to make HER problems everyone ELSE's problems.
Then stop. Walk away if she's safe (deprive her of an audience), and gently/quietly/placidly keep her safe if you can't.
Then go on about your day.
DO NOT be manipulated by her. It will only get worse and she will graduate to more elaborate means of manipulating you if you do.
As others have said-- it's a rough stage to live through. Think of it as training for the stage I'm in-- mine is 14, and has regained many of the same (less-savory) qualities that she did at this age. "It's normal" isn't a lot of consolation when you're living through it. How about--
it's temporary instead?
