DD is almost 7. She has always been a good sleeper but this last week she has struggled to go to sleep and has complained of tummy ache. We have managed to get to the reason and she is nervous about an upcoming show that her dance class are doing, it will be her first one. How can I help her? We have talked about it and explained nerves are normal and even we adults get nervous but I'm stuck as to how to help her switch off at night.