I wonder what the dividing factor between stubborn-minded auto-didactic and perfectionism is; if there is one. There are so many ways negative response to critique can be rooted. I had some negative responses from having a father who could give no positive without an equal measure of negative. I had some from not being able to "explain your work." Some came from being forced to follow processes and having my more functional methods broken; such as I could divide pretty much any two numbers very quickly with no work to show, being forced to do "long" division and quickly lost that ability (almost 40 years later and still bitter about that.) Some from losing faith in "authority." Some from having exceptions I had no idea how to address (e.g. lack of depth perception, poor handwriting.)

I use past tense, but it is still a work in process.