My sister is so annoying and I can't do this anymore

So get this. Average day. I come home from school a bit later than my sister. I come in wearing the greatest hoodie ever created in history. My sister says I haven't showered in five weeks, but that's just because I don't need to. I rush to my room without even greeting her, because once again I don't need to, and then I talk to my anime girlfriend. I then politely ask my sister to make food for me, usually two portions (for my girlfriend, and if she doesn't eat it, I do.)

I don't thank her because I don't feel like it. She usually drops the food infront of my rooms door because she thinks that place is "RANCID". Like, stop making fun of my goon cave room!!!!! I don't come out other than that, and she even wants me to stop moaning and fapping soo much. LIKE STOP INTERRUPTING ME WHEN I'M TRYING TO FAP, OKAY!?!?!??!?!?!?! I DID IT AT 4AM ONCE, BUT SHE STILL DOESN'T LIKE IT?!?!??!?!

Help?