Is it normal that i hate my sister?

My sister is one of those girls who likes to bitch about everyone or everything and I can't stand it! If she bitches to me I just go "mmm" "Uh-huh" because I don't want to gte involved but then she says "can you say something more than that?!" and I express my opinion and she verbally attacks me! She once told me that I'm a fat, selfish loser because I wanted to go to a chinese restaurant on my birthday! She saw nothing wrong with it and she still hasn't apologised to me to this day! If we're watching the news she keeps making comments that I couldn't give a fuck about but if I say she shouts at me. She's also a massive hypocrit, my step mum would be considered to be a trophy wife, and my sis keeps telling me how she'll "never end up like that" but she's going on sites like "sugar daddy" and is seeing a surgeon to get fake boobs and I tell her this and she gives some pathetic excuse as to how "it's diiferent". She thinks she knows it all, I'm joining the army and I've done extensive research but she talks about it as if she were the general chief of staff herself! When I correct her, she still pulls off some remark about me and it reall pisses me off. I'm a more chivalrous person so I think it's wrong to hit a girl but lately I've been really tempted to slam her in the face sometimes, is this normal?