Almighty Sara by Carolyn Chambers Clark
Series: Young Adult Adventures, Book 8.
Approx. 62,900 words.
Published on March 3, 2012.
When Sara Webster gets framed for stealing the answers to the psych midterm, she texts The Almighty for help and gets it.
If she helps out with the problems at school, Sara can be popular, get great clothes, stop her classroom tormentors, get all A's, and date that new hot boy everybody wants.
If she messes with free will, she'll have to answer to The Almighty