"I find fulfillment in this life and accept that when I'm dead it's game over."
I see your point. However, we must realize that any fulfillment we might find is subjective in nature and thus in the long run meaningless.
One person might say, "I find fulfillment in finding a cure for cancer."
Another might say, "I find fulfillment in collecting matchboxes."
Still another might say, "I find fulfillment in marrying the young woman with the finest legs in my county."
Or one might say, "I find fulfillment in being the Prime Minister of Belgium."
None of these choices can be said to be superior, in an objective sense, to any other choices.
"Your friends, if they can, may bury you with some distinction, and set up a monument, to let posterity see that your dust lies under such a stone; and when that is done, all is done. Your place is filled up by another, the world is just in the same state it was, you are blotted out of its sight, and as much forgotten by the world as if you had never belonged to it."--William Law