AITAH for refusing to speak to my brother after he attacked me

UPDATE - I blocked my mother and him, reported them both, and left that damned place.

Repost because it was removed from the AITA sub for mentioning violence. Oops

I feel inclined to share this since I’m getting berated by my extended family.

For context, I’m 21F and he’s 15M. My little brother (Rascal) is a narcissistic menace. As a kid, it was tolerable - I was his older sister, and being the eldest daughter of 5 kids in an ethnic household meant every action of his (and the rest of them) was on me. But as he grew older, he began taking advantage of the fact that I’m the scapegoat of the house, the one no one respects or listens to but is blamed for everything.

The straw that broke the camel’s back was him attacking me 2 weeks ago. He had my wrists on a death grip and I instinctively fought to get him off me. I was dumbfounded and also scared because he attacked me at the top of the stairs, and I was on the verge of falling down. He had a growth spurt last year so is 5’10” to my 5’5”, which perhaps gave him the confidence to manhandle his older sister??

I would’ve left there and then, but it was 10pm at night, with no car & nowhere to go. I woke up the next day with bruises on my wrists and got really upset and angry all over again. I called my uncle to tell him what happened because I didn’t know what else to do. I regret that because whilst he did tear Rascal a new one, he also told him to apologise to me after “she’s had a day to calm down”. Rascal didn’t do that, and I was truly hoping he’d never talk to me again since he didn’t get any punishment anyway, no one held him accountable for his behaviour - he just went straight back to his PS5.

However, my uncle called me back a few days ago and asked if Rascal had apologised yet. I was in my room, assuming no one was around, so I was talking loudly when I said “No, he didn’t apologise, and I don’t want a measly apology that means nothing anyway. He has done this over and over again and I’m tired of the abuse. I’ve done nothing to deserve this.”

Rascal was standing outside my room and heard that uncle was on call with me, and in an attempt to manipulate the situation again he ran, got some leftover snacks from his room and knocked on my door whilst I was still on call with uncle

My uncle heard Rascal come into my room & throw the snacks at me whilst saying sorry loudly. I saw red & threw the measly bag back at him, telling him to never speak to me again. My uncle started saying “wait, he apologised?? Why are you screaming, go tell him you accept it.”

I said lol you must be mad and ended the call.

Haven’t talked to uncle since either, I regret even involving him but I had no one to speak to, no friends, and my therapist appointment is in a month.

My cousin called me today: said Uncle told her everything and that I’m a bad sister for not hearing my brother out, that I should talk to him. She said “siblings fight all the time!”

So, AITA for standing my ground and vowing not to speak to him again?

(I will be moving out and going NC with my mother for other reasons, but this situation has solidified the fact that I also want nothing to do with him and his abuse.)