I’m not sure if this is what you had in mind, but when I was 10 or 11 I started reading my way through Edgar Allen Poe and Sherlock Holmes. By the time I was 13 or 14 I was working on Dostoevsky and other such dark literature, even though I still also liked the Andrew Lang “colored” fairy books from my early years. I continued to read those into my twenties, even while working on a degree in English and plowing through Nabokov. Ten years later I was reading about folktales, mythology, archetypes, etc., and those interests still generate themes in my reading.
I’m pretty sure my reading affected my view of myself, life, and the world, and it certainly influenced my further reading, right up to the present, which has in turn had ongoing effects in my life.