The lesson
Open a long interactive essay with a first-person hook and let the reader choose how much to read.
The page opens on a hand-drawn bandaged foot under the line "I ruptured my achilles in January." Short lines follow: "I decided to walk across Massachusetts." and "You decide how to experience my story:". Two buttons offer TEXT ("Visually-aided journal") and TLDR ("Mostly images").
Don't copy the walking story or the line-drawing style. Keep the two-path choice at the start and the sentence that sets personal stakes immediately.