>constantly bored >barely feel any different no matter

>>18547270
Do you socialize (in person and face-to-face) much?

Going to bed after this post so assuming you said "no":

You need to socialize motherfucker. Get outside, call up an old buddy or an acquaintance, and go out for coffee.

Promise you'll feel 20x better afterwards and a lot more open to having fun with a little bit of the stress lifted from being a loner

>>18547270
That's apathy, and it's usually one of the early signs of depression. A little technique I've found useful is to ask myself in everything I do: do I really need to be doing this? For example:
>watching dumb pointless youtube videos
No.
>spending hours aimlessly browsing 4chan
No.

etc. Basically anything that you don't need to do or are only doing because you can't think of anything else to do, stop. Do something more productive. Even cleaning or organizing things is good, or work on some personal projects. Or like >>18547274 said, go out and socialize. ANYTHING that's not sitting inside doing fuck all and sinking further into ennui.