So if i'm making a mod, how do i save it? Do i just hit export?

And when saved, where do i go to find it? Player Exported Mods?

So if find it there, how to i load the mod I've been working on in game? is there a command?

Yes just hit export
Player exported mods sounds pretty self-explanatory to me
/load (modname) i think i could be wrong

You need to create a modmaker folder in the Toribash directory. To do so, go to the adress:
C : \ Program Files (x86)\Steam\steamapps\common\Toribash\data\mod (Without spaces in "C : /")
On Windows 8.1
Create a new folder called "modmaker" EXACTLY LIKE THAT
Then click "Export" in the mod maker on Toribash
There's your mod