Let me go

Picture this: There's a witch who wears dark black and red dresses, who lives in a huge castle with a huge dungeon and a servant who will do anything for the witch because he loves her, There's a girl, who the witch hates and casts a spell on her because she wants her dead and finds her a threat.

Well, my story is a little like that, except that the witch lives in a normal house with normal clothes, the servant is the authorities, which will do whatever she tells them.
Another big difference is that instead of putting a curse on me that would soon make me dead, she made me an immortal.

The very few people that found out about my curse say that I'm lucky, and its more a blessing then a curse, But ask yourself this, is a blessing to watch those you love die and get weak? To never get old and never have a family of your own?
My name is Zaheera and Im an Immortal stuck in an 18 year old body.