Click forgot password. Use your recovery email to retrieve a code. Or, use you mobile number on the account to receive a code. If you did not place a mobile number or email on the account, it is lost. If you no longer have access to the email, it is lost. If you no longer has access to the mobile number on the account, it is lost. These are the only two ways to get your lost or forgotten password back. You could always jist write it down and carry it with you in a wallet!