Quite frankly.. The most demotivating thing that's been said to me doesn't exist.
I used to often ask for feedback on little previews or full songs of music I've made when I post 'em online and usually no one responds. That lack of response has been more demotivating than any potential mean comment. At least with a mean comment, I can ask what I could change, but to just have no one say anything???? It always gives off that vibe to me that people don't care about what I have to put out there, and that's never the case bc literally everybody I've talked to in person about my music always tells me that they see something great in what I can do. But again, since there's so little interaction with the actual thing online (those same people included), it just comes off as a compliment out of pity like "man, nobody cares, nice try though"
It's because of that I've never been fond of promoting my music much, but that's also why no one's able to say anything about what I'm working on either, and so I just tend to get stuck in this destructive spiral of a catch-22 that I created
My music's for me obviously, but god, do I want people's opinion on it