Change Password – cPanel

Login to cPanel.
Tutorial: login from the Client Area or from the direct link.

In the drop-down menu under Your Username at the Top Bar, choose Password & security.

OR
Find the Preferences section and click the Password & security link.

Old Password
— type your current password.
New Password
— type the new password that you want.
Enter a secure password in the text box.
Password must have at least 8 characters, must contain at least three character categories among the following:
Uppercase characters (A-Z),
Lowercase characters (a-z),
Digits (0-9),
Special characters (~!@#$%^&*_-+=`|(){}[]:;”‘<>,.?/)
The system will evaluate the password that you enter on a scale of 100. A weak password has 0 value, while a very secure password has 100 value. Or you can click Password Generator to let the system create a secure password for you. 
New Password (Again)
– retype the new password.
Click the Change your password now! button.

Be careful, You will be logout of cPanel.