External Hard Drive No Longer Reccognized

I have had an external USB Western Digital Hard Drive of unknown make for a while now and one day I woke up to find that it was no longer being recognized. I felt it and it still felt like it was spinning but there was an obvious clunk in it at a regular interval, as if it was a motor pushing something forward and getting pushed back. Through my research I found it might be related to the arm holding the heads and I would like a second opinion. It gets power and still feels as if it is spinning but other than that I can’t give any more information. My worst fear is having to send it to a data recovery center.