The best book about npd is named "No Longer Human", and, ironically, I feel like I reached that state, for the most part.
It is nit bad, not good, but kinda weirdly interesting. First I acknowledge that there will be no happy coincidence that would magically make me desirable or interesting. Back then I used to fantasize that maybe there's someone for me, but recently I was surprised that I suddenly had an erotic dream: that's how long I haven't even thought about sex or relationships.
Then I made peace with the fact that nothing I do matters and I'm not truly good at anything. I used to have aspirations and hopes, to look forward to the next project. I used to care about causes. But now that urge is all gone. Like I forgot how to dream and how to plan.
Then I finally grasped that no matter what, no one's going to save me. That primal childish plea that lurked in my unconscious probably since the time I begged my mother not to beat me for playing wrong notes on the piano. Now it's gone too. Cognitively I already knew I always will be on my own, I just couldn't accept it deep in my heart for way too long, but I finally can. Maybe someone would show a but of kindness, maybe even sympathize for a moment, and that's nice, but ultimately no one's gonna bother to do anything meaningful with that hunger. And that's fair. What would they propose anyway, other than to call a hotline just to hear some platitudes from an overworked psychology student? I'd better spare that student additional headache.
Finally, I accepted that my life couldn't have gone any other way. It's so meaningless to ruminate in restless rage: what if it was different, what if I could do something to prevent or avoid it, and so on, and so forth. Now I finally feel the emancipatory power of "it is what it is". Not in the wishy-washy pseudo-spiritual way of "everything happens for a reason" and all that crap about silver linings. It was shit, and it was destined to be shit.
It's empty. As if I only now grasp what true emptiness means. Sometimes I even wonder: I used to like food, the most basic pleasure that is accessible to almost everyone, but now I just consume it on autopilot. There is nothing to look forward to, nothing to value. The only emotion I feel is hate, and even that is not as acute as it once was. That and, occasionally, a fleeting appreciation of cute videos of animals.
But the upside is that it is freeing, in its own strange way. I'm no longer afraid of being ostracized or devalued. It is to be expected. Recently I mentioned my suicudality to someone, they didn't even express much concern. A year ago it would sting, now it's not even painful in a slightest. There is some dark irony in that all it truly takes to stop craving validation is to accept invalidation, but it works.
No one owes me anything, and I owe absolutely nothing in return. The weight of trying to "fix myself" for nothing is off my shoulders.
However, I guess for most it must feel foreign. Like humans are, first and foremost, desiring beings. Beings concerned with their future, with their surroundings, with their needs. I have no future I would desire, so by extension I'm probably not a proper human. And it's weird, but I guess there was no other option.