Lots of great suggestions in other comments. An addition for a possible route; Join a startup as an early employee with proven founders. Looking back on my past

Lots of great suggestions in other comments. An addition for a possible route; Join a startup as an early employee with proven founders. Looking back on my past 15 years of entrepreneurship, that had probably been a shortcut for me, not failing on as many simple things (even though I'd read, studied and tried lots of things, I still made in hindsight pretty "simple" mistakes). Also; There are lots of different ways to start a startup. There's no "right way" (although a lot of generic thoughts that usually apply to most cases - ie see Blank)