Hahahaaha. The nerd in me says smartly probably isn't a word, and intelligently should be substituted. Whether or not that changes the meaning (or hell, even if my spelling is correct) I really don't know.
No way man, get abrasive. This is the internet, take everything with a grain of salt. I'm saying even if you live in the middle of a small town in Ohio, theres gonna be Japanese people somewhere, you just gotta find em. Try the college campuses. After that, try the grocery stores. They are usually cool people who are more than willing to be friends with someone who actually has a way to relate (language learning).
I really dont think smartly is a word....
But anyway, do the best you can with the resources you got is all I'm saying. But don't limit yourself when you could have more resources just because you didn't think about it. I'm trying to stimulate that side of the brain in all you guys that says, "Hey, I think I should try to communicate using this stuff!" and maybe some will get out of the computer room and seek out a conversation partner/girlfriend/boyfriend/or something. Something you might not have otherwise done. Think outside the box [that is your home].
As for aida and aidani that is a tough question. Looking through my dictionary at example sentences they can be used interchangebly depending on the context. And there were a whole heck of a lot of different examples. So I'd like to hear about this one too.