“I’ve always had to work really hard for it,” Billy Eichner says in his hilarious, moving new audio memoir, Billy on Billy , out May 19. “Proving myself again and again and again… There was always someone out there who thought I was too something or not enough of something else. ‘He’s talking too much. He’s singing too loud. He’s too gay . He’s not gay enough.'”  The book traces how Eichner overcame gatekeepers’ doubts by repeatedly carving out his own lanes, first making Billy on the Street into a cultural phenomenon, then escaping it to re-embrace his acting roots — eventually starring in, co-writing, and producing the first big-budget gay romantic comedy, 2022’s Bros .…