If you're willing to work 100+ hours for your idea, work 40 for someone else and 40 on your own, and save money until you can take a few months off. Sell everything you have and move to somewhere with good internet and low expenses. The outskirts of a university town are a good place to start.
It is possible to live on less than $1000 a month in much of the country. This will extend your runway.
It's absolutely feasible. I'm 29, and I worked at a regular job for a bit over a year. I quit earlier this month and last week I moved to Pune (very low cost of living) which is where my partners and I are building our startup.
You can make excuses or you can make it happen. I chose to make it happen.
It is possible to live on less than $1000 a month in much of the country. This will extend your runway.
Wait, is that "not feasible?" Why not?