Wow, I sure hope I am still playing guitar when I get to be your age! You must have seen tons of things in your life to write about. The spectrum of history that you have lived through has seen such incredible change in technology and lifestyle. I am sitting here trying to imagine what aviation for instance was like when you were a young man compared to today.
Write about that broken leg if you must, but I am thinking that there are lots more things that you could write about.
Please drink and fornicate responsibly,
Dan