Has anyone else gone through a long period where they didn't enjoy a single thing they started?

There are so many good shows you are missing out on I feel like. I did read your list and I didn't see any dropped exept one (Monster), so I guess you don't really update that but. I can recommend a few.

I kinda based these recommendations on the genres you said you liked in your profile...

Grand Blue Dreaming (Comedy, but it's funny comedy)

OnePunch Man (Action + Superpower)

Parasyte the maxim (Horror + Action)

Death Note (Supernatural + Thriller)

Hunter x Hunter 2011 (Adventure + Action + Superpower)

Blue Literature Series (Physiological)

JUJUTSU KAISEN (Superpower + Action)

Attack on Titan (Horror + Action)

I don't know if you've seen some of the once I listed but. I based it off your list.

PS: You got a great Music taste!

Maybe you are having a burn-out, if you arent enjoying anything you should probably take a break from anime for a short time. If you dont wanna take a break then I suggest you watch things you like instead of venturing into genres you dont like as much.

Edit: I just saw your list and i see like @Lomom said, you are missing out on a lot of good anime that you might enjoy. So try giving them a try too

thats definitely a burnout , recommend taking a break from anime or rewatching one that u really enjoyed.else try a new genre outside what u usually watch ( personally during my major burnout i watched one piece)