If you can afford it, i highly recommend a Montessori school. My daughter use to be like this, now, when she had a day off from school, she keeps asking when she will go back to school. She loves it totally. It took about two years from our part and counseling to get to this point. She was shy, she didn’t know how to socialize etc… Anyway, she is back on top of her game.
Until then, i resonate fully to talk with the teacher and to come up with a plan.
I pray for this little girl for her needs to be fully understood, for her to be protected in all ways and for her to make great friends. Amen