I would like to go back to 1964, in a park in Hertfordshire, but that is a story only I and the young lady concerned know about.
It would be good to be able to prevent happening what did happen to ourselves, but as all sorts of fiction on the matter has shown, doing so would be fraught with problems, even if they were only small ones like Marty fancying his own Mom in Back to the Future.
Perhaps it would work to free our families if we could use the Dickensian method, and take them forward to 2034, and show them the world then, with just a few really demented people claiming to be JW's.