This is my eldest daughter, Maia, whose 12 and struggling with her emotions at the moment! What a horrible age, with all the hormonal changes going on! I certainly wouldn't want to go back to it! She really really didn't want to go on this walk today and me pointing a camera in her face probably didn't help!
We've been there too with our sons when they were this age - in our experience it is only temporary and then they are lovely again. Good moody photo though.
My son is 11 and we're just starting to see some moments of "attitude" creeping in. Such a tough time. I'm sure she'll get through it with you love and support