I find that my first two attempts at "startups" floundered (and eventually foundered) due in large part because I was too "young" (i.e., immature). I lacked co

I find that my first two attempts at "startups" floundered (and eventually foundered) due in large part because I was too "young" (i.e., immature). I lacked confidence in what I was doing, and I always felt like I wasn't old enough to bring in real customers. We'll see if startup #3 does any better (having a strong cofounder has certainly helped), but I think I can already say that there's no way our early-20s selves would have gotten this far (the two of us just weren't ready for it).