Your cPanel email accounts can be managed from the cPanel webmail interface
If you can login to you WordPress dashboard, you can easily change your own password from the 'Edit My Profile' screen. You may want to do this if your password has been guessed, for example.
If your email password has been guessed you can change your password from the webmail portal.
If you have lost your password, you can easily reset this from the WordPress login screen.
If you have lost your email password, you are able to log intoyour hosting control panel and change he password from there. This guide will explain how to do this. If you would prefer us to change the password for you, you can order our paid password reset service here