As a caregiver I have been with people as they died. It has almost always been peaceful and most pass with a soft smile on their lips. The one who didn’t go gently had let her fears overtake her. Assisting the dying is a beautiful experience to me. I have felt their spirit leave their bodies, it’s always remarkable the difference in the energy. Whatever is on the other side is nothing to fear. I feel that living can be more terrifying at times than dying. We do have to live our lives alone, even if there is a partner, that partner just gives us the illusion that we’re not alone. We live alone, we die alone. Someone might hold your hand as you cross over, a caregiver, friend or lover, but they are only holding your hand on this side as you let go. There is nothing to fear. ✌?

Having died already, I can assure you that the surroundings fade right away and you pretty much forget your life. Relax, someone there or not will make no difference whatsoever....

I have been very ill before, I just wanted to be left the hell alone.

You're not alone in fearing dying. I've still got things to do.

I don't fear that at all. I believe dying alone won't be a problem for me. I have a different problem. It's living alone that has me concerned. I'm alone now because I am worried I might outlive a partner. I usually have younger partners, if I take a partner I would prefer she "went" first. My father died ten years before my mother. My mother had ten very lonely years. I would prefer not to have my partner in that situation.

I pretty much expect it. How accepting I am of it varies from day to day

I feel the worst would be to die unloved. That most I have loved and been loved by have gone before me does not alter the feeling that I still carry their love with me, still cherish it, and it will sustain my passing, though there are few who survive me.

Having read your profile, I have some thoughts to share. My father was an activist, union organizer and involved in the Civil Rights movement. His life ran at a fast clip, always mentally engaged in the wild chatter of the outside world, not very adept at, maybe afraid of, looking internally. He, like you, (hope it's okay to generalize) was born and raised in challenging circumstances and took on the world with bravado. He could see the lies and deceit. He lived to 82 and just before he died he confided to me 'I'm not ready to die.'
I have spent much of my life caring for others, ultimately leading to hospice nursing. You are relatively young and have time to explore your feelings and thoughts about death, time to address your anxieties, too. One suggestion: plan for an in-house hospice death. You will not die alone. It can be costly unless you have insurance to cover it. And if you look into hospice and like what you see, write this wish up in your legal documents (have you seen the 5 Wishes pamphlet for end of life choice-making?). One other suggestion: look into euthanasia on the West coast (Oregon). If you end up with a verifiable end of life diagnosis, you may consider euthanasia (find out if there would be someone by your bedside to administer the meds?). There are often options in life, as well as end of life. I encourage you to look into your options. Knowledge is power, even with end of life.
BTW, admire the activist in you!

I only fear dying in unrelieved pain.

I don't fear dying; I fear lingering, having to rely on others for care. I think if I were in a relationship, I would worry that I was a burden on the other person.

We all die alone.
Myself, I will ensure I am alone if at all possible.
I plan to be on control of my end.
I certainly have no fear of dying alone,
I would rather not have witnesses though,
bodily functions and all.