Are you interchanging the terms "pages" and "categories"? My posts are in different categories too (what I used to call "pages") and now they ALL appear on my "home" in a list of excerpts, (which I would like to change to some sort of widgetized thing...) but they also each appear just on the category page that matches the category they belong to. If they are marked as belonging to the category "about me" then they are there when you navigate with that button on the nav bar, and do not appear on the "news" category page as well. Only "news" ones are there.
I know how frustrating this is. I have been working on my blog for WEEKS because I am totally new and know nothing about coding, etc. Maybe it was easier for me because I have "Prose" as my theme in Genesis, and it allows for two custom menus. So, when I had my first WRONG menu made with "Pages" I could then make another custom menu name "categories test menu" and go and create my categories (I think it is listed in where the tab is to create posts) and then I moved the categories into my new test menu, and I activated that menu, then I tested my blog and everything was moving the way I wanted it. I totally DELETED all my pages. What a waste of time!!
I don't know if I can be of much help for things other than exactly what I have done myself, but I have certainly learned those lessons well and the hard way.