"Here is a promise and a fact"

I came across this video by Caitlin Moran on Facebook and wanted to share it, though, since it's not obvious to my technically-challenged brain how to imbed the thing, I'm just including the link:

"Here is a promise and a fact"

Good to listen to "when you cannot remember why you were happy at 12 and cannot imagine being happy at 21" or, equally, between any other ages.