Do they say the same jokes every fucking day? Do they steal things from your room and think it's funny when really they know how it feels? I don't think they do.
It doesn't matter what they do. What matters is that you want to murder your own family, and that's just not right.
Oh no, your sibling annoys you. Because you're totally the only person that happens to. Seriously man, you need to calm down, it's not that big a deal. It happens to everyone, you're the only one acting like this.