Working on determining my niche

I saw that my niche should be in one of the three categories, and what I had originally planned on doing in my niche is offering a programme for teens from 10th to 12th grade a roadmap to finding what they want to do with their life: getting excited by the adventure of their life to be and back in action when they are feeling anxious they will never find what to do.

I fear this does not fit in wealth, health or relationship unless it’s their relationship with themselves?

Also I get anxious that I should not target teens whose brain is not fully developed and won’t be as involved as their parents in signing up.