If you forget your password to the Jamf School Management System it is possible to reset your Jamf School password by pressing the "Forgot your password? Reset my password" on the log-in screen. This will give you a field to enter your email, once entered it will send you a password reset email.
This will send you a password reset email and you should be able to access your environment again.
Keep in mind a password reset link is only active for 24 hours before they expire.