Thanks to her acclaimed performance in “Parade,” Micaela Diamond has found herself nominated for a Tony Award at just 23 years old. The attention could be overwhelming for any young actor, so it’s a good thing she knows someone who’s been through it before: her co-star and fellow nominee Ben Platt, who was nominated for a Tony (and won) at 23 for “Dear Evan Hansen.” Listen to this week’s “Stagecraft” podcast below: “I’m really grateful that Ben has done this before and is such a grounding presence at theater,” Diamond said during a conversation with Platt on the new episode...