I’ve 100% been in your shoes but gotta say, if you don’t have customers you don’t have a business, you have a hobby.
I would stop all development work on the product and sign up 10 customers. See what that process is like, see if you like it, hear their objections. You’ll find a way to take sales calls during the work day (I used to from my car at lunchtime).
If you get 10 paying customers, why not 100, why not 1,000.
Can you automate the signup process or do a self-service demo somehow? I’ve done pre-recorded videos en lieu of sales calls for a time and it worked ok.
Generally though, I would NOT just quit your job if you have zero paying customers. Ease into it. Sounds like you’ve been burning the candle at both ends for a while, and I have mad respect for that, but probably best to keep doing it a bit longer til you have some sense for what revenue of the business could really look like. Especially if you have kids and a family to support.
In your shoes I would either:
- Raise VC: freemium and B2C apps are almost impossible to bootstrap without funding
- Quit and do something else: If you can’t raise real money for it your chances of success are really low (sorry, just being honest)
This is why so many indie makers and bootstrappers go B2B - it’s just easier to make the math work with getting dozens or hundreds of customers to make a really solid business.