thoughts on mortality

Ok, so I am reading. It’s a true story. Eat, Pray, Love. The woman is talking now about her anxiety about mortality. She is explaining how, as a child, the fear of mortality and the shortness of life, consumed her. She perseverated on the fact that her pets, her parents, her friends, her sisters, were all growing older and every day was bringing all of them, one step closer to death. After writing these feelings and thoughts down, the author explains that she knows that having such a metaphysical crisis, especially at such a young age, is not something everyone goes through. And that though some people (like her and myself) are hardwired for anxiety about mortality, others seem a lot more comfortable with the whole deal. I am wondering your thoughts on this. I have explained to my psychologist how terrified I am of dying. Not necessarily the act of, not the pain from, but the thought that I will not be here any more and that I can no longer contribute to the world, that I will be unable to think or to witness the world continue. I get very overwhelmed thinking of how the world will just continue indefinitely and I will be only a distant memory for a few people and some day, a generation or two from now, no one will know anything about me and my life will have proved useless. It’s crazy to think about that. I remember being in elementary school, 7 or 8 years old, and crying in bed about this thought. It is a huge issue for me. I don't know if I believe that we continue living elsewhere, like life after death? As an intellect, I have a hard time with that, since no one can prove it. And my mom believes in reincarnation, but even if that were true, it would sill be sad because I would be someone else and not remember who I was previously. I don’t know... just some thoughts....