Writing a novel was a very personal task. It was common to find that one could not continue after writing a paragraph. The best thing to do in this situation was to stop and re-examine your story to find out where the problem was. It could be due to the plot design, character creation, or writing style. Then, he could try to solve these problems, re-imagine the story, shape the characters, improve the writing style, and so on. If these problems could be solved, then perhaps he could continue writing. Of course, if these problems couldn't be solved, he might have to consider giving up the novel and looking for other topics or writing directions. The most important thing is not to give up easily. Writing is a very interesting task. If you can persevere, you may gain a lot.