Okay, so… Mechanical drive failure sucks. You may not be completely out of luck, though.

First thing to try would be throwing it in a bag of rice and freezing it. The rice is just to help prevent condensation. In theory, the contraction from the freezing temperatures can help with some physical clearances or something like that.

Now… Definitely try that before this next step. In fact, try literally anything and everything you can before this next step. It is a stupid thing to do and I should probably be downvoted for even suggesting it.

But… I had an early iPod with a mechanical hard drive which I thought was dead. I was saving up money to send it off to be serviced because the warranty had expired. It was sitting on the top of my dresser. A friend came over and knocked it off, he picked it up and showed it to me, booting up and running just fine. Some months later it started clicking again. I weighed my options, and eventually I dropped it on the floor on purpose, picked it up and held the power button, and it came on without issue. Some time after that, My laptop hard drive started behaving similarly. Guess what? Removed the drive, banged it against my knee or something, stuck it back in the computer, runs without issue.

I am still not explicitly suggesting this. Those platters inside are made of glass and there is a very, very small gap between the surface where the data is stored and the needles which are doing the reading / writing. You cannot do this carefully enough to ensure that you won’t shatter a platter or ram a needle into the metal substrate. But if you have nothing to lose… maybe some concussive engineering can help.