This Is My Niche. Do You Suggest I Get More Specific?

My Niche: I help women lose weight without calorie counting or cardio.

My Target Market: Women who want to lose weight
– I do find this to be broad. Any suggestions on if it should be more specific?

Demographic: Under 40.

Psychographic: Into personal development and mindset. Values Spirituality (specifically, Christianity)
– is this perhaps too specific?

Their Non Negotiable: No food tracking. No Cardio.

I keep thinking it seems great, but I feel doubtful because aspects of it feel too vague and some feel too specific. From an expert perspective, would you recommend moving forward with what I have? Or are any changes suggestes/recommended?