Your dream is rich with vivid imagery and complex themes, which can provide a lot of insight into your subconscious thoughts and feelings.

1. Fear and Danger: The presence of a demon and the theme of being hunted or eaten suggest feelings of vulnerability or fear in your waking life. This could relate to a situation where you feel threatened or overwhelmed, possibly by external pressures or internal conflicts.
2. Transformation and Escape: The journey from the railroad or mini coaster to swimming in the river indicates a significant transition. Water often symbolizes emotions and the subconscious, suggesting you are navigating through your feelings. The act of jumping off the cliff could represent a leap of faith or a desire to escape from a situation that feels constricting or dangerous.
3. Isolation and Sacrifice: The two people who lived with the demon and ultimately hanged themselves might symbolize feelings of isolation or the consequences of fear. Their fate could reflect your anxieties about those around you and how they cope with their fears, potentially mirroring your own struggles.
4. Confrontation with the Unknown: The tall, skinny woman claiming to be an author could represent new knowledge or perspectives that you are encountering. Her unusual appearance might symbolize something that feels out of place or strange in your life, perhaps reflecting your own feelings of being misunderstood or different.
5. Exploration of Self: The overall journey through the woods and the challenges you face can signify an exploration of your inner self. It may be encouraging you to confront your fears and embrace change, pushing you toward personal growth.

Advice: Consider reflecting on what aspects of your life feel like a struggle or a source of fear. It may be helpful to reach out to someone you trust to discuss these feelings. Engaging in creative outlets, like writing or art, can also provide a way to process these emotions and explore your thoughts further.