When Airbnb popped up on my screen I was in Siberia having my website rewritten from scratch after 8 years of spaghetti code.
It was the same thing and Airbnb which was just designed better (in 2008).
When a couple of years later I finally realized they destroyed my business it took me some time to admit I didn't really miss a chance: I had none to begin with.
I just don't have what it takes to grow a business to those levels.
In my case it's probably not an emotional issue, but it has still a lot to do with personality.
I guess my takeaway is: not everyone can be a CEO of a unicorn and this is fine.