You can use drugs. They will likely fuck you up and make you addicted though, so only do this if you have nothing better to do. The steps are to use some sort of darkweb link repository (dark.fail used to be good but it looks like it's down) that includes some links to some markets. From there, go to a couple markets, and from what I remember you use either Recon (site for checking seller reputation, last I checked it was dead but if it's somehow come back up you can use it) or Dread, which is the leddit of the dark web and includes some seller discussion. If a seller is on different markets, has a lot of sales, and good reputation (i.e. on Dread), they're probably not a scammer (biggest problem when buying drugs online), and you can proceed to purchase some Monero and use it to buy drugs. I'd also recommend checking out some resources into identifying honeypots, e.g. by Mental Outlaw the swarthy nigger, so that you don't end up on a scam site if you can't use a good curated site that only lists reputable markets (and e.g. have to use some sort of general repository). This is all second-hand info though, so again, I'd be wary about using drugs to cope.
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You could also order a pack of razors on Amazon (knives aren't sharp enough) and start cutting yourself up like a faggot. Nobody will judge at the end of the day. This is again a serious cope to use when other options aren't working. Stuff I'd recommend would be to cut on the thighs so you can hide your scars better, and to fold up sheets of paper and place them on your cuts so that your blood won't get all over them the damn place and e.g. make your pajamas or whatever other clothes you use wet. This is honestly not a bad option if you have lots to time with nothing to do e.g. at home, but again it's best to use it only when you genuinely cannot handle anything and need an emergency release valve, if at all.
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Onto less serious copes, food works to some extent, more so drink. Having a bunch of sodas around you can drink at any time is quite nice and can help to some extent, but is likely not sustainable in the long run. Porn is also a cope you can use, and a free one, but you can easily fall down a rabbit hole into more and more degenerate content, but then again, dying alone with nobody to care for you means nobody will care you're being a degen nigger either, unless you go Goonclown levels of crazy. A good upside of porn is that you'll likely get some human interaction every now and then if you do shit like ERP or talk about your "fantasies" or whatever other porn-addled bullshit there is to do with others. You can also make your gooning turn somewhat productive by using it as an excuse to learn image editing and/or video editing so you can make PMVs/HMVs/edits/etc. There's plenty of places to share your stuff too, and a willing audience, since gooners make up a good silent majority of the modern niggernet. That leads onto another cope: making shit, whether it be OC memes or other BS. This one doesn't really have to be explained, but there's plenty of meme edits you could make e.g. with Capcut about certain mass shooters, for example.
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Last cope is to just continue using sites like this one, though I fear this too will be unsustainable as the internet gets more and more pozzed.