Slow iMac, late 2015, EtreCheck report
I have an iMac, late 2015, 8GB with 883GB of storage left. I am getting beachballs on pretty much every application I run, and it is incredibly slow to start up. I have just run an EtreCheck report, which says that "this machine has a hard drive that appears to be failing."
My tech skills are not great, and I have no idea what this report is actually telling me. Could someone review and translate to a recommendation(s) I can implement?
Thanks!!
iMac 27", macOS 10.15