Overdrinking Niche

I’ve been a bit confused about “What niche should I choose” . I wanted to “go big” … like “Success” or “Money” for EVERYONE – because I want to help the maximum number of people possible. Then I recently saw a blog post called “Before and After Photos of People Who Stopped Drinking” and it blew my mind with people’s transformations (physical and in lifestyle). And I thought… “Wow! I L-O-V-E that I was able to stop drinking. I would love to give that gift to others.”

I’m wondering … is “Overdrinking” a niche – or should it be niched down a bit. Like “I Help Entrepreneurs Stop Overdrinking” or “I Help Mom’s Stop Overdrinking”? Wondering what you thought on this. Thanks!