There are two ways to change your password.
Options to change your password
Option 1: Choose Forgot Password on the sign-in page
When logging in to your account, you may choose the Forgot Password button. This will send a password reset email to the email address on file.
Option 2: Change password in the dashboard
Head to the Account Info -> Profile tab of the dashboard. Once in the Profile tab, you'll see the Change Password button in the top right. You'll need your current password in order to set a new one. If you don't know your password, use Option 1 to change your password.