Dragon Undone by Viola Grace

Inheritor of a family vendetta, getting revenge on the dragons has side effects that raise a lot of questions.

All Aeli wanted was revenge for her father. She planned and schemed in secret, finally carrying out a plot that she had designed as a disgruntled teen.
She takes the spell to the dragon council and lets the ball go, shattering, spreading the banishment spell, and kicking all the dragons out of the city in one large cascade.
Imagine her surprise when she gets sucked out into the open wasteland outside the city, and the dragons know who is responsible for her plight.
Councillor Kreelo comes to her rescue and flies her to safety where she comes to grips with what her banishment means and how it will affect her life. She had no idea she was a dragon and thinks it is ridiculous, but how else would the spell grab her.
She needs to undo the spell so she can return to normal. If anyone in Rekker City will accept her apology.