Harry Potter is My Brother?

Have you ever had a famous sibling that you didn't know? This is me Emma Voldemort. I am somehow Harry Potter's sister. My father is Lord Voldemort. I don't know who my mother is. I have been thinking about who she is. I've been thinking about my dad reviving Lily Potter,Harry's mother, or because Harry and me have the same powers such as talking to snakes, and much more. 

Ironic as it is, I am the nicest girl with a dark side. So if you do get me super mad I will use Avada Kedavra and kill you instantly. Know one in the wizard world know that Lord Voldemort is my dad, not even the death eaters. I have no friends. If I go somewhere and I have to use my name my dad told me to use Riddle. I am a behemothic secret. So soon I will start Howarts soon I have already gotten my supplies and my owl. I have also have gotten my first year robe. The best thing is that I don't do my shopping alone I have a house-elf named Lola. I am hoping to get into the house of Gryffindor so i can meet Harry Potter and not tell him I'm his sister. I won't tell him until I find out who my mother is or how we are related. My dad told me not to tell Harry Potter about me or he will kill me. Sometimes I can't take him seriously because he has no nose.