Broppy in high school

I'm bad at writing stories and descriptions but here it is:

This is a story about a teenage fairy gray troll finding her true colors. The gray troll name is poppy. She is gray because of her foster mom died from an illness that can't be cured when she 6 years old. Poppy is grumpy and mean but when you get to know her she is nice caring. Poppy has 2 good friends and the three are in a difficult challenge to deal with...high school. On the other hand, poppy thinks that her foster sister penny hates her from the death of her mother (remember that poppy is the foster child but penny is not) and because she's gray What will happen next? Will she ever be happy and find her true love before it's too late? Read this to see what happens. (P.S. The trolls are fairies so they have wings and magic powers and stuff and the bergans are in this too).