when i was 10, i was being bullied for being "different" (basically having way too much anger and sadness in me), my teacher and parents (specifically my dad) would yell at me by the simple fact that i had negative emotions (so basically when i cried or had a "crisis" as he called them, which just so happened to make the problem even WORSE, most of my classmates would constantly bully me and making bad jokes about me and make fun of me for having increased emotions, my teacher would put me down and attack me on my "difference" mainly on again my increased emotions, and also because i would sometimes correct the teacher (i didn't know it was bad at the time because nobody told me to not do it, and also i was ahead in most subjects)

Funnily enough, middle school kind of saved me because i wasn't as bad as before and most of the bullies just moved away or moved on

TL;DR : i was bullied at 10 for being autistic without a diagnosis (until i was 13) my parents, teacher and classmates made my life a living hell