Teachers, students, and parents with Basic Schoology accounts can delete their accounts by navigating to https://app.schoology.com/settings/account/action?delete while logged into the account they'd like to delete. Deleting an account removes all submissions, resources, and content associated with the account, and neither the account nor the items can be restored.
Teachers, students, and parents in a school or organization with the Enterprise version of Schoology should speak with their System Administrator for assistance with managing their accounts. Accounts inactivated by a System Administrator may be restored if needed.
If you're not sure if your school or organization is Enterprise, you can check the Help Center area to find a Support Contact for your school, or ask your teacher for more information.