Dear Welcome to HCM We understand your concerns I went through your details. You had almost diagnosed that her problem is school anxiety. She is 6 years. That means she is into school for more than a year. She is an experienced girl with school matters. You should investigate when and how she has started this sort of behavior. Then you should also investigate why she is behaving such. There has to be a reason and finding the reason will be easy to solve the behavioral problem. The reason could anything from punishment from a teacher, exam performance, quarrel with a friend etc. The reason could be silly for you, but for her, it is troublesome and anxiety provoking. If you feel that you tried everything and you could not bring anything out of her, please consider consulting a child psychologist. They are trained experts under the given circumstances. Punishments and forcing will worsen the anxiety further and therefore do not attempt that. If you require more of my help in this aspect, please use this URL. http://goo.gl/aYW2pR. Make sure that you include every minute detail possible. Hope this answers your query. Further clarifications are welcome. Good luck. Take care.