...when I was a teenager I used to look at the drawings of Da Vinci, the sculptures of Michelangelo, listen to the music of Mozart and read Dickens and wonder whether it was worth carrying on!!!!! 
No I am older I can do all these things and appreciate them for what they are but then I was consumed with feelings of inadequacy and my total inability to do anything. I have no discernable talent of any kind. (unless you count how many custard creams I can eat in one go?)
If you could choose, what would you have liked to be able to leave as your legacy?
I would have loved to have been a great novelist, to have won the Booker AND the Nobel prize for literature.....sigh.....