You would be stupid if you quit in order to start something with a 90% failure rate. Don't be stupid. Instead, figure out what business idea you can accomplish

You would be stupid if you quit in order to start something with a 90% failure rate. Don't be stupid. Instead, figure out what business idea you can accomplish that would have a 10% failure rate -- a 90% chance of success. While you're doing that, accumulate capital, so that you have at two years of complete living expenses in the bank. When you have both of those things, you can discuss taking a year to do a startup, with a one year ramp. At the end of the year, you evaluate: - is this close enough to success that you should definitely continue? - is this almost ready, and you are no more than 3 months away from a go/no-go? - is it time to end it, take a couple of months off to be with your family, and then have 10 months to look for a new job?