7 year old freaking out because she can't think of a suitable name for the character she's pretending to be. I've suggested a few things, but it ends in her shrieking and whinging that it's not a suitable name. She won't drop it either. It's been 45 minutes now, on and off. I've tried getting her to focus on something else, to do something else, but she keeps coming back to it. I've been very calm so far and explained that I don't like being shrieked at but have had to walk away because I'm going to lose it, I've had enough of being screamed at. She's stomped off in tears.
I'm not handling this very well, how would you deal with it? I need some suggestions.