How do I post to a specific page on my blogging hub?

I recently launched my own blogging hub and started playing around with the layout. I managed to set up some pages that show up in a horizontal menu on my homepage, but now I’m hitting a bit of a wall. I can't figure out how to make a specific post appear within a certain themed page rather than just sitting on the main landing page.

To be more specific: if I write a post about my background, how can I ensure it shows up under my "About Me" section? I want it to live there specifically, instead of just being another entry on the homepage. Any tips on how to handle this? Thanks for the help!