What's on your mind?

[Ahzoh]

That a really does look more like an article to indicate plurality than just a basic morpheme that shows up every other day in speech or writing. For some reason I ended up hating articles, they seem pointless if your nouns and adjectives do have a clear way to denote their declination or plurality.

Articles only indicate definiteness or indefiniteness, of which ā does neither. The morpheme ā is a different particle. But it only exists in formal writing and speech and lost elsewhere. It comes from a particle āp of which the p assimilated to certain adjacent consonants while the unassimilated version of it is lost, rather like this:

Development of initial geminates in certain syntactic contexts due to word-initial mutations resulting from sandhi effects:

ad kasa > ak‿kasa
ad > a
ak‿kasa now reanalyzed as a kkasa

Then musu, coined centuries after a lost its final /d/, becomes mmusu after a because it's a regular morphosyntactic process now

Well, I'm also looking for ways to avoid using prepositions as much as possible, but sometimes it gets hard to display the slight differences between going to some new location and beginning to walk away from a specific point.

Prepositions (or post positions) are necessary, but some can be expressed in cases:
https://en.wikipedia.org/wiki/List_of_grammatical_cases
But you can't add too many of them, as that is kitchen-sinky and very unlikely cross-linguistically. Cases also come into existence based on a hierarchy:
https://en.wikipedia.org/wiki/Case_hierarchy
Some can also be expressed as verbs-of-direction such as "to go in/enter" and "to go out/exit" or "to go towards/arrive" and "to go away/leave".

You might also want to look into deciding whether your language is head-initial, head-final, or a mix of both:
https://en.wikipedia.org/wiki/Head-direc..._parameter

Does that map belong to a single concountry? Or does it reflect the existence of several city states?

The names in black on the map are all nations spanning a small section of continent. the blue names are their capitals.
The one important thing I've learned about rivers is that they can combine into a bigger river, but can they NEVER split.