When her mother is convicted as a paedophile, a 16-year-old girl struggles with therapy, high-school, and an overnight change in how she is seen by society as she seeks to be legally emancipated.
You have a unique situation with plenty of potential, now you need to sort out the different strands and find the main story.
Why would the girl need legal emancipation? Since you have not told us otherwise, I would assume her mother is in jail and the girl is a ward of the state. By the time her mother gets out of jail, the girl will be a legal adult. Hence, for all intent and purpose she is already emancipated from her mother. So why bother when she has so many other problems? — Unless, and this you have not told us either, the girl was also a victim of her mother’s crimes. In that case we can understand her wanting to sock it to her mother come what may.
If she is not a victim, then how does society see this young woman? Hereditary sex offender? Unindicted co-conspirator? Or self-centered brat who abandoned her mother when she needed help? If her battle with society is the main theme, tell us what she must do to bring society around to her side.
Nice work! So we have one young female protagonist, one sexually messed up mother, who then causes our protagonist to be highly motivated to seek relief from the situation.
A middle-aged woman convicted of paedophilia is a very original concept, mostly because it breaks with the stereotype. Swapping the antagonist character for a male of course implies incest.
While such a setup suggests much psychology, what might be the character flaw of the young girl be? Is she simply meek and lacking courage?
An interesting premise, but… mess it up, really mess it up. Go deeper.
Have her mother make a “Mrs. Robinson” move on her boyfriend (or at least the boy she has a crush on.)
And her mother is not only arrested but also pregnant. The minor whom she seduced is the father.