Just got done doing this. Spent 30k in cash and maybe 60k ( like, 60k in cold, hard, 2017 posttax dollars ) in opp cost. It was fun but I had the same "idea" as you, which is to say multiple ideas, which really is no idea. Still haven't launched a product and racked up a decent amount of cc debt. If you quit,don't use your runway like I did to design and build a product. Use it to pitch, pitch, pitch and pitch some more. That's your new job; pitching and raising ( or pre-selling if you can with e.g. Kickstarter ), NOT building!.