I know the feeling, I posted a thread recently:
https://mydramalist.com/discussions/general-discussion/65463-starting-a-series-and-dropping-it
It's like nothing works anymore, like a drug addict that can't get his fix :)
But I found my dosage last weekend, Arthdal Chronicles. It's a bit dark, but it's very engaging, and high quality.
I also like Go Go Squid, but it's way too long and slow, but I keep watching it because I like the leads.
Maybe some sort of reset can help. Clear everything, don't watch anything for 2-3 weeks. And then watch something carefully selected, even a series you've previously watched that you really enjoyed but has sort of faded in memory.