read part of it back in 2017-2019 on the schools mackenvia account, ive checked there but no luck since i no longer have the class. Anyway it was a ya novel about this highschool aged friendgroup, perks of being a wallflower vibes. All i remember from the book though is how it started: introducing the friendgroup via them playing a card game that they had made up. one of the cards in the deck was added for a characters birthday (i think his name was marth or mark??) the card said game over name wins.
Lost Classics of Teen Lit: Name That Book! 