This is why backups are so important in the pc world. I have your same HDD and it's around the same age, but mine is still going. Really if you can't boot into any os and recover the data, and it won't start up and it just keeps giving you error codes, the drive is dead. You could send it out for data recovery, but this costs thousands of dollars as it is meant for organizations that lost irreplaceable files. Even with data recovery there is always a chance that the people working on your drive can't extract the data.