You need better cooling in your case. 65° is too high. And without being able to see the actual SMART stats... weird that you would crop the important part off... we can't give you a good answer, but the total NAND writes nearing uhh, 1.6PB probably has something to do with it. You are likely going to start randomly losing data soon...
It thinks that its out of write cycles, however I pushed a 2TB samsung 980 pro to 7PB and it was fine, so ymmv. It did get slower after a while, but not unbearably so. I have been at 0% for 2+PB.
I only use it for irreplaceable data that I only have one copy of though.