‘No Harry-related questions, please,’ stipulates Gemma Styles’ agent as we’re organising this interview. And, once I’ve done my research on Styles the older (Harry is three years her junior at 29), I understand why: she is a powerhouse. Her list of engagements and accolades is as long as my arm: activist, podcaster, writer, mental health ambassador, ‘accidental’ influencer, sunglasses designer… She has so many strings to her bow that I don’t even know where to start.