The feeling of loss when writing a novel may be due to a lack of understanding and grasp of the plot, characters, and theme of the story. In this case, they might feel that they did not create a truly meaningful story or that they did not develop and express the story well enough. It could also be because they lacked confidence in their writing skills or felt that their writing and story ideas were not good enough. In this case, they might feel that they had not created a truly outstanding work or that their contribution to writing was not enough. Writing a novel required constant learning and exploration. It required constant attempts at new methods and techniques in order to continuously improve one's writing skills. At the same time, he also needed to maintain enough enthusiasm and confidence in his work to create truly outstanding works.