As a parentified kid, I was abusive to my brother.

From when I was 10-11 to when I turned 19 I was made to take care of my neuro-divergent brother (ADHD and autistic traits).

When I say take care it's not just making a few meals... I mean being made to bathe him until he was 10 and wipe is ass after he went to the toilet and feed him because my parents didn't want to let him eat by himself because he'd take too long...

I wouldn't mind doing it when he was little because it's understandable that a baby/toddler needs those things done, but when he was a prepubescent child and on top of having to do everything for him I had to deal with his constant ADHD (he likes to make you angry for fun) and also having to do the normal house chores (keeping the house clean, it's not a small house), and also on top of that I had to deal with my own adolescence, highschool drama and the stupid people in class. So as a result I started to do the same things my mom did to me when I was a kid.

My mom used to hit me very badly as a kid despite the fact that I was actually very well behaved. They hit me when I committed mistakes like spilling a glass of water. So when my brother was being annoying or committed mistakes I hit him and insult him like my mom did.

He always laughed when I did it, so it didn't make me feel regret afterwards.

Now as an adult (21) living away from my family I feel so terrible about how my brother got raised... My parents didn't give him any attention, then the person parenting him is his abusive sister that is always angry and hits him and insults him.

I really regret the way I handled it, someone else would have probably handled it better, but now the harm is done. My brother seems fine but I fear in the future he won't be and it's all our fault because the people around him failed him.