Preteen Hormones

Dr. Mom I'm sure you have some advice on this subject. My 11 year old stepdaughter is having a good bit of mood swings, crying fits & self esteem problems. I know she is at that time in life where her hormones are stirred up & some things like this are to be expected, but it has been happening everyday for the most part, mornings are especially bad. She eats a healthy vegan diet for the most part (when she is with us) & have been giving her Holy Basil & Bach's Larch Flower Essence. Do you have any other tips that may help us get her to deal with this time of life better & keep us sane?

Thanks
Travis