I still vividly remember when we switched gyms. It was heartwrenching for me to see my daughter so sad. My daughter was 11 years old and a Level 9. It was a switch in the right direction however. Training was not good at her former gym. When we switched I made the mistake of telling her, we could go back to her former gym if she truly hated this gym. Then I realized this was not a good thing to say as she will find everything wrong with the new gym and will not try to adjust. So, I told her, it was this gym and she could not go back. She stopped crying and I think started to try to accept her fate. But honestly, for several months, she looked like somebody died despite her new team welcoming her and instantly inviting her to sleepovers. She did not smile as much.
It took a good 6 months before my daughter finally looked like she was enjoying herself again. But if you ask my daughter, she thinks it only took two weeks to get over her old gym. She even commented to me several years ago, that she remembers it being somewhat hard to leave her first gym, but she said, if she had to leave this seond gym, it would be exponentially harder. We've been at this gym going on 4 years now. She is a third year Level 10 and very happy. Your daughter will get over the switch, just hang in there.