I wouldn't panic yet. It sounds like she was a little young for kindergarten the first time (and if she entered when she was"almost 5". She was.
She is the experienced one in the class now and sounds like she is trying to take a bit of control. If you have an experienced teacher she will be able to handle the situation. It won't happen overnight, but it will happen. She exhibits very few of the classic signs of ADHD or ADD. You might try talking with the teacher and seeing if she can find any kind of a "helping role" for her in the classroom-ie. if a new child comes in she helps them. And you might try the same thing at home.
At this point, I think you just want to keep communication open with the teacher, love your daughter, and give it another month or so.
Thank you very much. I am excited about trying that approach!