I found that, as a person who (sometimes) creates things, my attitude towards other people who create things has significantly shifted. When I was younger I would just see the fault -- the typos, the narcissism, the pointlessness, the already-been-done-better-by-others -- of people's work. But after trying a bit, it sometimes (for the same reasons the OP talks about) creating anything new ends up being really hard in…
I had a similar experience after visiting a modern art museum with a creative friend of mine. I jokingly said "Even I could have done that" about one of the pieces and my friend replied, "But you didn't" -- hit me in one of those profound realization kind of ways. I started thinking about all of the effort it takes to envision something, find the resources, build it, work to get it displayed somewhere. Just creating…
They actually sell a poster that says this at the Guggenheim gift shop.