You sound a little negative and self-defeatist about everything, whereas a lot of people would be able to spin even a startup failure as an amazing learning and growing experience.
I was sadly incapable of acquiring the mentorship, knowledge, and resources I needed on my own. I was naive and wholly ignorant. I ran around like a headless chicken for 5 years constantly putting out fires and looking over my shoulder.
And now have very little for it.
Right now you sound very defeatist and negative and it would be tough for somebody to hire you if this is the mindset you convey to the world.
Treat this as a creative writing exercise. Sit down and list the things you did, and spin them as positively as possible. Even if you didn't do something perfect, so what? You think every company out there is doing everything perfect?