Recently discovered this post and decided to leave a comment (love the Ryukishio07 mention). The tumblr bit was interesting since i was too young to be on that website, Although i picked up some bits of information on amino (yes that amino) mentioning "what good representation is" and "what and wasnt apropriate character traits for black characters". I would often get anxious thoughts if the character i was making was offensive or that i was misusing my creativity as a kid since i enjoyed adding different colored hair, Personality traits, disabilities ect and not resulting to just one type of character trait/stereotype. Im hispanic so my experience is different and theres alot of dogshit rep out there but thats a whole different discussion lol.
I learned and gained insight and let go some of that anxiety behind. you've explained it better than i could and i respect that.