In order to change your password, you can click on your initials in the top-right corner of the screen at any time, and it will pop out your account sidebar.
Here, you can click on Profile Settings, which will pop out a second sidebar.
You can then click “Change Password”.
This will bring up the Change Password window.
Here, you will need to enter your old password, as well as your new password (twice for confirmation).
Once the password requirements have been fulfilled, the “Change Password” button will be enabled. To finish, click the “Change Password” button.