So I'm about 53,000 words into my current WIP. I don't have issues with grammar/spelling/punctuation, and I'm relatively good with show-not-tell, tone-setting, word choice, etc - I'm not saying I'm perfect by any means, but those aren't the areas of my writing I worry about. What I worry about are the big-picture things. I.e. when the plot takes 180-degree turns, or there's an unexplained mystery that you can't seem to find room to tie in anywhere, or when you know a character is flat or cliche and that fixing him/her in revision will take lots of work. I'm not asking for advice on anything in specific. I have my plot mapped out until the end, and my revision process will mainly consist of those big-picture issues, like 1) Character development - adding dimensions and layers to the secondary characters, giving them issues of their own that tie in to the bigger plot (there's no need to do this for Every Single Minor Character of course but you get the idea) etc. 2) Fleshing out certain things that are important parts of the story but just get skimmed over 3) Adding extra scenes that contribute to fleshing out the plot, characterization, etc 4) Cutting scenes that don't need to be there Etc., and that will fix most of the insecurities I'm having and aspects of my story I'm not pleased with. But right now, my worry is "What if I finish and it's full of plot holes and corniness and I hate it?" A good friend assured me that's not the case, but still, I worry. I know I have it in me to make it awesome post-revision, but it'll be a messy process. Kind of looking forward to revision, actually. So, I guess my question is...... What kind of issues do you face when you get far (past 40,000-ish words, or more than halfway) into your novel? What is the hardest part of revision for you? What did you worry about most while writing the unrevised version of the novel? Just for the sake of discussion and comparison.