https://www.youtube.com/watch?v=WW1GcSOQWxg “Life as a teenager can be down right chaotic,” the actress Yara Shahidi, 15, told an audience last month at Cipriani 42nd Street, where she was being honored by the Young Women’s Leadership Network. “We must also realize that it is up to us whether these years will feel like a melancholy struggle or an opportunity for growth or experiences of a lifetime.” From Our Advertisers For Ms. Shahidi, it’s certainly the latter. As the actress who plays Zoey, the smart but entitled daughter on ABC’s “Black-ish,” a situation comedy about a prosperous black family wrestling with racial issues, Ms. Shahidi certainly has a platform to be heard. But she has not stopped there. When she’s not taping “Black-ish,” she is a full-time social activist, inspiring young women to excel academically, volunteering at medical clinics and starting her own mentoring club. “I’m filming nine and a half hours a day five days a week, but whenever I have a free moment, I’m talking to the U.N. or working on how to get Yara’s Club launched,” Ms. Shahidi said, referring to a mentoring program with the Young Women’s Leadership Network. “Giving back is not just something you do as an adult.” There are few African-American actresses her age who are having the kind of cultural and social impact that Ms. Shahidi is, both on and off screen. This year, she was nominated for a Teen Choice Award for best breakout star. She won a N.A.A.C.P. Image Award for outstanding supporting actress in a comedy series. She was also recognized by the N.A.A.C.P. for her commitment to service and scholarship. Last month, Ms. Shahidi met with UN Women, an organization dedicated to gender equality. And before that, she spoke at the Paley Center for Media on a panel titled “Cracking the Code: Diversity, Hollywood & STEM.” Plus, she was featured in the Brooks Brothers fall 2015 advertising campaign. “I think one of the things that makes Yara so unique is that she is really breaking down a lot of stereotypes for people, but she is also such a normal teenager,” said Colleen Wormsley, a public relations and talent manager for DoSomething.org, a nonprofit group that helps young people take action on social change.