I think I genuinely hate my sister.
Why do you hate your sister?
I can't stand her and hate being around her.
It's not good to hate your sister, because siblings are supposed to be there for one another. I think you should try talking to your sister and try to build a good relationship with her.
Nah I can't stop hating her.
But that type of relationship with your sister is very unhealthy. She's your sister no matter what and you should learn to love all the good things about her.