Page of the Champions on Instagram: "Follow @a_winners_mindset_ for more lain Armitage didn’t go to acting school. He just started reviewing Broadway shows on YouTube — at age 6. He called it “lain Loves Theatre.” Cute. Honest. Smart. Agents noticed. Then HBO called. At 8, he landed a role in Big Little Lies - acting alongside Nicole Kidman and Reese Witherspoon. Then came Young Sheldon. Millions of people tuning in weekly. He was only 9. He wasn’t copying Jim Parsons. He made the character his