Sami Gayle has played Nicky Reagan on the hit CBS drama “Blue Bloods” for eight seasons, performed on Broadway a few times, acted opposite Adrien Brody in her first film, and she’s only 22. She now stars in “Candy Jar,” a fun and smart new Netflix film set in the world of high school debate. We talk about the unique way the work deepens when you have played a character over a period of time, and why “quality over quantity” is the approach she’s taking with her career.