Writers lead messy lives, constantly condemned to days of lousy first drafts, failed ideas and chronic misstatements. Daniel Handler feels this deeply throughout his kinda-sorta memoir, “And Then? And Then? What Else?” Eventually it reaches a boiling point. Late in the book he abandons his quirky-cool demeanor — he’s best known as Lemony Snicket, author of the offbeat children’s books “A Series of Unfortunate Events” — and lets fly with an f-bomb-laden rant about cancel culture and the pressure writers feel to be everything to everyone.