You could have validated this idea (for next to nothing, I might add) before quitting your job and investing all of your savings.

There's a lot of good reading out there around how to do what you've tried to do here in a safe and sensible way that doesn't waste time and your own hard earned money, but you seem to have ignored all of that. I suggest you purchase a copy of http://theleanstartup.com/

I genuinely wish you all the best of luck, but the way you've gone about this seems to me to be very, very foolish. Reckless even, given you have a family.