Personally I don't believe in the paranormal.
You're running from it, because you've already come to terms with "the fact" that there's no life after death. You're in the exact same position I was in twelve years ago. I had completely freed myself from the need to live forever. I was comfortable knowing that this life has an end and I actually was able to concentrate on this life, making it better for myself and everyone I care about.
I had overcome, conquered the need to be immortal. I figured why even dwell on nothingness (bodily death)? I will just focus on the life I have now, which is the only life I'm ever going to have. There are no gods, demons, angels, all of that is a bunch of Bull Hockey. I'm a sexy realist, a rational atheist-materialist, I even threw in some Marxist-Leninism. I didn't want to investigate the paranormal. I was incredulous but after being challenged by someone, I took the offer in order to humiliate him. I ended up experiencing the paranormal and having to change my materialist paradigm of reality.
I still believe moral, virtuous atheist-materialists, are superior to "righteous theists". Goodness for goodness sake is morally superior to goodness to stay out of hell or inherit eternal life. Being virtuous despite recognizing the finality of life is superior to theistic morality. Acknowledging that one's existence has an end and yet still being a good person, that's more impressive than religious morality. Not becoming a destructive, angry, nihilistic, atheist SOB, but rather, being virtuous, you have empathy, you can be compassionate, you're a responsible, caring person. If there is a God in heaven, I see him honoring such atheists, even more so than those religious holly-rollers, who grovel at his feet.
I sympathize with you, but nonetheless, the paranormal is real. You're at a disadvantage in life, if you don't recognize the various sources that have an influence over your life (your health, psyche, finances, relationships..etc.).
IMO it's all a function of the quantum field.
The human mind, the paranormal, it might all be connected, heavily influenced and dependent upon the "quantum" world. I don't believe in the supernatural, I believe in the paranormal. Both of those criteria aren't the same. The paranormal is 100% natural. The natural vs supernatural dichotomy is BS. Everything that exists is natural, including spirits, ghosts, demons, angels, God, whatever we call it. It's all 100% part of reality or nature. There's no "supernatural" and the paranormal, is only something "abnormal" or "para" normal and rare, because in the modern, materialist, scientific age, we ignore or run away from it. We condition ourselves to reject it, hence we hardly ever experience or recognize it, if ever.
I don't think the mind can be separated from the brain at all but the quantum field could possible preserve some of the traces of your mind via entangled particles.
Maybe, it's all just quantum physics. I agree. Maybe we have a "quantum body", a body made of some other material or energy than the biological. Maybe thoughts, the mind, has a body. I don't know, maybe I'm talking crap, but I do know what I experienced, and it's "paranormal". Those intelligent entities that were communicating with me through those radio-sweepers really do exist.
Quantum mechanics is really weird and we are only just realizing how prevalent it is in nature. Photosynthesis is now believed to rely on the quantum realm where a photon takes every possible path simultaneously which is how a photosynthetic reaction can occur in less than a trillionth of a second And you seem to want to try and distill far more about me from a single post that was half tongue in cheek than is possible. So maybe you better check your own close mindedness and your penchant for jumping to conclusions on such sparse evidence.
I already experienced and witnessed the evidence for the paranormal, and so did my wife and children, so we know it's true. There are beings, who are generally invisible to our five senses, yet are just as real as you and me. They identify themselves as spirits, sometimes "the dead", "ghosts", the mischievous ones will identify themselves as "demons", "devils"..etc. Poltergeists are also real, because I had one, for the duration of my research with the radio-sweepers. Objects moving around by themselves in front of my family and I. It wasn't nearly as dramatic as the movie "Poltergeist", it was just simple stuff. Cabinet doors opening and closing by themselves, a spatula flying off the kitchen counter, headphones sliding across the desk.
I'm surprised, being that you're a genuine seeker of truth, that you haven't asked me how to conduct your own study. Why haven't you inquired on how to organize your own research into this phenomena? I already imbedded some videos showing what's involved. It's easy to set-up your own lab or workshop at home. Just let me know, if you're interested, and I will assist you in your effort to establish contact, with the spirits. It will transform your life, and view of reality. Maybe you just don't want that, I know I didn't.
I repeat, you're at a disadvantage though, if you're a strict materialist, who rejects the paranormal, for the reason I mentioned earlier. You can be manipulated, even "cursed" by someone and you won't have a clue (the knowledge or awareness), to recognize it for what it is (recognizing it will often neutralize it). Maybe all of this paranormal stuff, is just generated by the biological brain. Human consciousness can generate all of this phenomena. Maybe it's true that when we die there's nothing, because the biological "hardware" (i.e. the brain) that generates consciousness is gone. But again, the paranormal is real. Investigate, research it and you'll see for yourself.