Troll-hunters fanfic/Two sides of the coin Abandoned!

Her father a changeling, while her mom was human... whenever she encounters a troll they would call her a changeling or an Impure... She never knew why... One day at age 6 she would get dragged into the world of changeling and trolls... whilst surviving high school with a mental disorder... Will she continue living like this, is there even a cure for her forbidden genes? Read to find out!