If you still have your keycard, you can only recover your password by following the instructions here. Unfortunately without your keycard we are not able to reset your password for you as we do not have access to your account and we do not have a copy of your keycard stored on our servers. You should contact our support team in this case as we may be able to recover your Bitcoin balance, if you had one.
As a reminder, the Metal Keycard is a PDF file that you were asked to download and store when you created your account. You also might have printed it out and stored it somewhere. Our "What does the Metal Keycard look like?" article may help you find your lost Keycard.