Go to the upper right corner of your screen on the blue header bar to see your Username.
Click on your Username and the drop down list below appears. You may not have "Settings" in your list.
When the screen below appears, enter a new Password and Confirm Password.
Password requirements: must be at least 6 characters long and contain: 1 uppercase, 1 lowercase, 1 numeral, and 1 special character.
Click the Save button in the upper right corner to save your changes.