The following is an excerpt from Advice No One Asked For by Emmy–nominated comedian Jenny Hagel, out June 2 from Gallery Books, an imprint of Simon & Schuster, LCC. You’d think with a résumé like Jenny Hagel’s—being a writer/performer for Late Night with Seth Meyers, and head writer/EP of The Amber Ruffin Show—she would describe her greatest accomplishment as something like sharing the stage with Hillary Clinton, or the six times she was nominat…