I'm annoyed that my disabled sister doesn't do anything
Are you kidding me? Why do you feel this way about her?
Because of her, I was abandoned later by people around me because they felt guilty about it
You should show empathy for people who have disabilities. This sort of attitude could make her really upset.
How can she be upset. She is disabled.
I think you should a little more empathetic to your sister, I'm sure she can feel emotion. She never asked to be this way, so I believe the best thing is to just keep her comfortable. Don't you want to have a better relationship with her?