MY STEPSISTER IS SO ANNOYING. SHE SMACKS LOUDER THAN ANY OTHER PERSON. SHE INSTEAD OF USING DENTAL FLOSS I MEAN SHE USES IT AND I UNDERSTAND THAT SHE HAS BRACES BUT SHE EATS STUFF SHE IS NOT ALLOWED TO EAT WITH THEM. AND SHE TELLS ME NOT TO LEAVE MY STUFF IN MY ROOM WE SHARE MY ROOM, WELL WE BRING DRINKS IN HERE AND SHE TELLS ME NOT TO LEAVE MY  STUFF IN HERE WHEN SHE DOES EVEN MORE THAN I DO!  AND LIKE SHE THINKS SHE KNOWS EVERYTHING, WHEN SHE DOESN'T. I KNOW SHE IS 17 BUT SHE ACTS LIKE A KNOW IT ALL. I WILL TELL MY MOM WHAT I DID AT SCHOOL AND SHE WILL JUST BUD IN ON ME. AND I WAS TALKING TO MY MOM! ALSO, SHE TELLS ME NOT TO LEAVE MY CLOTHES IN THE BATHROOM, WELL SHE LEAVES HER  IN STUFF THERE ALL THE TIME. SHE IS TELLING ME NOT TO DO STUFF THAT SHE GOES AND DOES RIGHT BEHIND ME. I ASKED HER A QUESTION WHICH WAS HOW LONG BEFORE THAT MOVIE IS OVER? THEN SHE SAID WHY DOES IT MATTER GO AWAY! THAT HAPPENED LIKE NOT EVEN 10  MINUTES AGO. NOW I DO NOT KNOW WHAT TO DO. PLEASE SOMEBODY GIVE ME A GOOD NOT SILLY BUT STRAIGHT FOREWARD ANSWER. THANKYOU.