I am the same way. I have one failed, one "moderate hit" that as CTO I left, and now I trust no-one but myself to do product need validation. And I've become so

I am the same way. I have one failed, one "moderate hit" that as CTO I left, and now I trust no-one but myself to do product need validation. And I've become so skeptical of my results, that I have to hear the message over and over.