It's just that my wife won't let me... :)
And that $10k isn't $10k. It's more like $6k after taxes.
So with food and miscellaneous expenses, things start to get tight pretty quickly. Health insurance for a self employed person for a family will easily be $2000+/month. So on top of the high taxes, which are even higher for being self employed, you're getting a non-employer-paid health insurance plan.
...I think my "$10k/month" was probably a bit low, actually.
And... being a family with kids, the government gives us money... I actually get from the government more than I currently pay in taxes.
And... we have (relatively) an excellent public health system. I have no need to buy health insurance, even with a large family.
So... I am glad I'm not trying to do this in the US!!!
http://www.irs.gov/Businesses/Small-Businesses-&-Self-Employ...
Medicare which I don't use, because I buy insurance, and social security which I'll never be able to collect.
http://aeon.co/magazine/psychology/humans-are-wired-for-nega...
We are wired for negativity. You won't be alone.
Until I'm clearing 10k/month, quitting isn't even a remote possibility. It would probably even need to be more with health insurance and self employment tax to consider.
Edit: I wish you the best of luck. Maybe I just lack the stomach for betting on something that isn't a sure bet.