5 decades haven't really helped me to be any thicker skinned to criticism, I think an overly religious upbringing combined with a tender spirit will keep me from achieving that goal...which is not to say I haven't learned a lot about how to deal with it, & not to let guilt overwhelm me (much?), & to always consider the source, i.e., does the criticizer intend to help or hurt me on my way to a better me? Being my own worst critic also helps me to anticipate where the barbs & arrows might be incoming.

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Plug me into somethin'

If the theory does not conform to the facts, then the facts must be discarded.

No good deed ever goes unpunished

Never argue with an idiot. He'll drag you down to his level, & beat you with experience.