I need some advice - I fully understand that this post will make me look bad, but I want to change that. My sister is 8 years younger than me (14) & she is definitely on the spectrum. She has development issues, in the sense of her motor skills and neurodevelopment. She can talk, walk and for the most part do basic things eg she showers by herself (although she needs help wrapping her hair into a towel and shampooing it), she can just about make toast but again needs help bc the buttering is where she trips up etc. So she isn’t completely reliant on others but to an extent she is. She also has trouble controlling her emotions, and often will swear at us when she’s upset, as well as not take accountability for when she’s done something wrong. She also loves her phone, which causes a few issues (between her and the whole family) but I do understand that this could just be due to the fact she’s a teenager. I think our issue is that when she is on her phone / device, she’s just really unaware of people so if we ask her smth, we have to repeat it.
I will be the first to admit I judge her according to the standards of a “neurotypical” individual, which I KNOW is wrong of me to do, but I sometimes get so frustrated that I lash out and say bad things and shout at her, even though I KNOW it is not in her control. I’m trying to be better and more sympathetic because she is my only sister, but I just want advice on how I can do this and be a better big sister. I feel awful for lashing out and treating her badly, especially when I know she gets picked on at school and doesn’t have many friends.
Sorry that this post is so long, I just really need help on what to do. I know it is ultimately not her fault but I feel like when I get annoyed or angry, I seem to forget all that and think it’s okay to treat her badly, and it feels even worse bc I am 8 years older than her and I feel like I should be taking care of her and be there for her as a big sister. Any advice would be much appreciated, thank you