Niche feedback

Hello! I would like feedback on my niche and know if this is specific enough:

I want to provide mental support for young active women who decided to quit their job to follow their partner somewhere / abroad. I want to teach them how to own their decision, to live their experience fully and to take advantage of it to live the exact life they want rather than falling into a self-pity and isolation spiral.

1) What do you think about this idea?
2) Should I focus on young active women who decide to quit their job to follow their partner in general (in the same country or abroad) or would you recommend to narrow down to follow their partner abroad only?
3) I am originally from France and I followed my partner abroad so I was also wondering if I should narrow down my market to young French active women following their partner.

Thank you in advance for your help!