Acadamy for Girls. Whats your special power?

I was stolen from my family, taken to a place I have no idea where? Its been 12 years since I last saw my sister cursed whose memory was wiped and my parents murdered, and my life taken from me. I have a vague memory of my sister. I cant remember what my sister looks like. I think we are twins, but I cant be sure. Heck I cant even remember what my sisters name is. I've been living in a place which has no name. I've been living a life which has never been mine. I've been raised by faceless parent figures who's name has never been spoken! Well at least in front of me? I've lived my last 12 years of my life in a place where day blends with night. That's all I never known. Solitude as my best friend. Now Im being sent to a school in the middle of know where, A place to master my powers, or have them taken away. I've lost everything from my old life, now Im losing my life ive ever know, no matter how horrible it was. The only things I have left my vegue memory of my old life, is my determination to find my cursed sister who has know Idea I exist, and the ability of all matters of the mind. And lastly I have a scar shapd like E.
I have no memory of my family. I cant remember anything before I was 4. I grew up in a home with people to take care of me and my special power. It was the perfect loving home. Well all I know is that years after I was sent to my special home with my adoptive parents. Now, I am being sent to a school called Acadamy for girls. What's you're special talent. I have learned there is only 12 girls at this school. But I don't know why. I leave in the morning and its somewhere I have no idea where. I just know that I AM AN ONLY CHILD. That is all I know from my past. And there is one other thing I have a scar in shape of a A. Its all quite strange. Oh, I also have the power of shapeshifting, controlling the element, mind powers, and a secret power in which noone knows or can even name