I've had similar experiences to this. What worked for me was stepping outside my comfort zone with my reading. I've read from different genres and that has helped. I've switched for a short time from novels to short stories or even articles and that has helped. Engage in conversations about what you're reading, either IRL or online. Focus on reads that tackle Moral, Ethical, and/or Philosophical concepts you haven't encountered in your life, as this is one of the reasons we have fiction, to create scenarios to help us develop our values.