I hope we haven’t overwhelmed you!
Do consider encouraging Brielle’s interests in dance and whatever else she likes in a non-competitive situation. E.g., not a dance team that competes, but a good dance class, which will probably still have recitals and applause, but not winners and losers. (Probably better training, too.) If she likes fashion, let her learn to sew or design, not compete in pageants.
The idea is to focus on the skill or activity, not winning a prize for it and not competing with others. If she’s always in competition with others, it will be much harder for her to see them not as obstacles to her own success but as people with feelings, and to cheerfully let them have their turn and even root for them.