Oh, this is a great quiestion. You know, when I was little (8 or 9) my dad was enclosed in some shady things on his life, thus, bringing some grizzly experiencies for my family and he always talked about death and that he would be gone the moment we less expected it. When I was about 12 years old, my mind was trying to understand and cope with the definition of death as mature as possible (for that age, I mean, so, yeah it was hard) and I just went in a downward spiral thinking my parents will die someday, my brother and sister, too, some close friends etc. So I became an alcoholic and learned the hard way meany things, at that young and thus, inexperienced age. Creepy.
After some years of experiencing life and making the right choices (I could have been a horrible person, you see, but because I did not fall on the lure of my damned childhood, I was able to keep it up) I finally came to therms with that. I understood that life is a cicle and that it must end some day. It was not easy, but at least it was not as hard as a pain as it was before. It become, more and more an idea that my mind wrapped. Also, (and this is a personal decision) I am a catholic but also a man of facts, so believe me, I have seen death close, and take away some people close to my circle, and some miraculously events that I can't describe with the logic on this world. I believe in God and I am not trying to start a religion war, just my two cents. Not only because somebody told me, no, because I have lived and seen so many things, I truly believe we are not just coincidence.
Now, today, as father of two, married and thank God all my original family still around, I look back and smile because I made the right choices and that has led me to live a happy life, enjoying my loved ones and just living it up. But yeah, still, deep in my soul, sometimes that fear lurks... I guess we all have that fear, and we all are going to face it sooner or later, in ourselves or our dear ones, and that is truly horrible, to be honest, but then again, it is a cycle, it is a natural way of things.
And maybe there will never ever be a street with my name on it, but at least I am at peace beause I know my kids love me, my wife loves me and my original family too (it was not easy, it cost me years of understanding and learning about life and things in general). And if you ask me, that is more important than having a public legacy.
Just my two cents, I really hope you have happines, health and more important, peace in your soul. If you have that, you are assured to enjoy life, even when that grizzly end can be seen on the end of the road.
Cheers man and dont forget to tell your loved ones just that.