An acquaintance asked a group of us to motivate him to finish his story for a writer's workshop in a few days rather than attending the local book festival coming that weekend.
Ahem.
There will be other book festivals. If you go to this one, what lasting impact will you have on the world? What will be left of your life after you are gone? If you go to a book festival - nothing. Temporary enjoyment, and then it's gone in a flash. If you work and produce something - possibly a great work of art. Perhaps not this one that you're writing, but it will be one more stone laid in the foundation for what will become your legacy.
Do you want to fade to nothing like almost everyone else who's ever lived? Or do you want your life to mean something?
Write.