Some tips for the OP or anyone in OP's situation if you want to maintain anime as a hobby:
-Recognize the demographic of a show. It's been pointed out already that you are tired of shows written for little boys and lonely otaku. So it would help if you recognized that that's what those shows are for, and either avoid them or enjoy them for what they are without holding them up to Count of Monte Cristo.
-Try something different. I guess related to the prior point. Shows for little kids and otaku do take up much of the mainstream attention, particularly in currently-airing seasons, so it does take more work to find something more interesting. But if you do find something you like outside of the mainstream, it's even more rewarding. A tip that might help with that, I suppose, is to look for things that are not based on manga or games or books. If you can't find something new that catches your interest, then
-Try old stuff. Have you seen the Count of Monte Cristo anime? It's pretty weird, and different. Maybe not as good as the book, but worth a watch. That's not exactly what I meant by 'old' stuff, but I suppose anything that's already finished airing can be considered old. But I'm talking things that are more than a decade old. If you can't handle how 'old' (70's, 80's) shows look, then I can't help you.
-Don't marathon a single show. If a show is worth the effort of actually paying attention to the story or ongoing mystery, I personally think spreading it out over time adds more value to it than if I watched the whole thing in a few days. I think 'anime marathons' are fine if you have the time, but you can watch multiple things in that marathon rather than just one.
So I guess my tips boil down to add some variety and take your time. There are other things I would consider if you want to go 'deeper', like following specific studios (Madhouse would be perhaps the safest choice) or looking at the history of certain directors. I get a kick out of robot shows, so my main anime projects right now are old robot shows. My focus is on things directed by Ryosuke Takahashi. I still watch shows that are new, but the shows that I am most interested in are decidedly 'off-mainstream' things like Chihayafuru and Space Brothers. I checked in recently with Attack on Titan, and that's all right.
So there are still things out there in anime to be interested in if you want to look further than the first things that are shoved in your face, and if you can handle something that's more than 5 or 10 or 20 years old.