Kiana Carrington of Mill Basin, Brooklyn is the chapter president of YCP Brooklyn. She was educated in the Diocese of Brooklyn’s schools and now works as an event strategist. (Photos: Bill Miller) GOWANUS — More than 400 working professionals from the Diocese of Brooklyn turned out on May 28 to launch the newest chapter of Young Catholic Professionals. YCP Brooklyn is the 45th chapter of the national organization that helps Catholic workers in …