Yes, it has been incredibly helpful for our family. Life changing really. It sounds like what you are saying is that her disposition heads toward anxious. If that's the case those traits are not usually outgrown, but instead they need to learn to be managed. The earlier - the better. She can learn habits of the mind that will last her into adult life. So, if later she resurfaces in adult life with more anxiety, she will have a foundation for dealing with it.
The key is getting a good match with a therapist. I would encourage you to interview therapists and be choosy if you can. You want someone you both can feel comfortable with. I agree with the suggestion to look for someone who is directed and results oriented and who will provide specific homework assignments.
