Your great-grandkids will probably know your name and one story. Start living the story.

Memory across generations compresses hard. A whole life becomes a name and one anecdote, usually something specific and slightly odd rather than a summary of achievements. That compression is not an insult, it is simply how families remember over long distances.

You cannot choose which story survives, but you can make sure there is one. Do something a little brave or unusual that could actually be told afterwards. It happens to be the same sort of thing that makes the present more interesting to live in.