If you would like to change your current login password, or in the case that your password was reset and you would like to change to a more fitting password, you can do so by first visiting your Account page. Click on your profile photo at the top right, and select "Account".
Look for the "Password" section and select "Edit".
You will then be prompted to input your Current Password and the desired new Password.
Make sure to "Submit" to save changes.