Committing to niche

For the past 6 years I have taught a 10 week health coaching program to help people create healthier habits and daily routines based on Ayurveda (yoga’s sister science). My program helps people lose weight, improve sleep, balance digestion, reduce anxiety among other things. I’ve been working hard trying to build my business and I’ve realized that if I want to get to the next level I need to niche.
My last launch I decided I would niche to weight loss.
I changed my sales page, created a new webinar and made all my sales emails around weight loss (emotional eating, etc). I didn’t hit my numbers for the niche.
However, I’m still hesitating and trying to decide if this is the best decision for me.
I’m a yoga teacher and yogis don’t talk about weight loss explicitly. I’ve googled around and there are no weight loss programs based on yoga and Ayurveda lifestyle (that I could find). I’m wondering if that means it’s not a good idea or if that’s a great thing because there’s no competition lol!
I’m indulging in some major confusion which is preventing me from being all in with this niche or choosing a different one.
I’ve signed up for the March Life Coach School but I need to hit some income targets before then and would like to figure this out sooner rather than later.
Question is: Is an Ayurvedic and yoga weight loss program a good idea or not?