@sweety06 Okay, so basically, you can go back and edit by clicking the "my works" button from the drop down menu on your username, and then next to the chapter that you just published, there's a little button that says "edit" with a little pencil icon I think, and if you click on that, it'll take you to the editing page again. Make whatever corrections you like, then press "save", and the changes will be saved to your book and corrected :)
Does that help?