it's probably not much help, but i'd defenetly say spend as much time as possible with your family/ loved ones. also if their is something you enjoy in life, do a lot of that... make the most of the time you have- and try not to dwell on it

i am really sorry this is happenening to you

and, as a note, i've always been afraid of dying alone.. i've been isolated most of my life, for my death i'd at least like to be with someone