Wealth, Health, Relationships, or None-of-the-above?

I’m considering the niche “Performance anxiety coach for collegiate music students.” I *think* this would be a relationship niche because the work would primarily be self-confidence work… improving the clients’ relationship with him/her/their self and his/her/their audience. I’m I working too hard to create a fit? There’s a wealth element because a musician who can’t perform because of anxiety is out of a job… and anxiety can cause health issues. Is it more important that the problem fit into one of the categories, or that I *present* it as fitting into one of the categories?