Honestly; I've founded many different businesses over the past 20 years (of varying levels of success), and I get really tired of people telling me everything I'm doing wrong.
If I wanted to hear what I'm doing wrong, I'd call my parents or talk to the wife.
Interesting because I think generally the experience is quite the opposite. Parents & spouses (never had one) tend to be over encouraging and much less critical. So I can see how you found that redundant since the critiquing was coming from another source in your life.
It took 10 years for my mom to stop asking when I was going to get a "real" job.
Nobody wants to be told what they are doing is wrong. They must choose to figure it out on their own.
It seems unlikely that after 10 minutes someone would understand your situation enough to be able to judge.