What is the summary for worst witch book?

Mildred Hubble is an ordinary girl who dreams of becoming a witch. She enrolls in a prestigious witching school, but she quickly realizes that she's not the most talented student. Despite this, she's determined to succeed and works hard to improve her skills. Mildred faces a number of challenges, including a rival student, a jealous classmate, and a difficult teacher. She must use all of her skills, magic and otherwise, to overcome these challenges.