I'm not OP but let me take this opportunity to recommend Fyodor Dostoevsky. I started with The Brothers Karamazov when I was fresh out of high school and struggling with identity (coming from a traditional Hindu society in Nepal). It has helped me immensely and I consider it to be one of the best most comprehensive and educational books I have ever read.
(If it helps anyone, Kurt Vonnegut, who wrote Slaughterhouse Five and Breakfast of Champions is a big fan of Dostoevsky and recommends his works in multiple writings.)
/$0.02