Graceful, gutsy and seemingly unfazed by the bright lights, 15-year-old Isabeau Levito decided to go for it in her free skate while reminding herself once more to just stay calm. The teen star from Mount Holly needed a near-flawless free skate to capture gold at the U.S. Figure Skating Championships after Bradie Tennell’s beautiful performance minutes earlier. Levito accomplished just that, delivering a dazzling 149.55 score for a 223.33 total to win her first women’s national title Friday night. “I was just very proud of myself for having collected myself and done the program that I needed to…