No matter what I do, I can't seem to get the right pacing for the novel that I'm writing. Most of the time, I think it's too slow, and sometimes, I think it's too fast. This problem subconsciously made me develop a habit of writing fillers. Too much fillers... Although said fillers have a great significance to the plot, but as a result, it made the overall story pretty bland. I think my flaw is that I focus too much in trying to build the world and characters that it made the novel lack in some parts.
What do you guys think I should do to balance things out?