There's this tremendous power in "not knowing what you don't know" that sometime in university disappeared from me and now I have paralysis: what if I'm just being annoying? Will I embarrass myself? I don't want to waste people's time. Am I being pedantic? etc.
I've spent the last handful of years refining my communication of, "I'm just trying to be helpful and have absolutely no expectations. No offense taken if this goes ignored or is rejected." It's kind of worked insofar as I feel less anxious about trying to be helpful and I've never had anyone really come at my throat for it. Not that they would have anyways, but good luck telling my brain that.