I think my cousin is traumatized because of our experience 9 years ago
What happened 9 years ago?
Were at a kids' respite home and we had to go through some special exercises and became more and more uncomfortable and scared. We were like, ah why do we have to go through this? Then we had to go through more exercises that we had to come together and become one and all. We all did that and it felt weird.
People should make sure to treat kids better and not to anything to traumatize them like this. You should talk to someone about what they did.
If she wanted to, she would bring it up.
It is possible that she is scared to. You can open up to her about how you feel and it might help her, if not you can just drop it.