yep I'm done. It was a fun 50 hours. Theres nothing to do, and I suck at fighting people online. So that's it.
If you don't play Pokemon competitively, I understand how you can run out of steam rather quickly after the story is completed. You're pretty much right that there's not much left to do, but if you ever want to try to get into competitive battles, stick around and ask questions. We'll get you all caught up.
Breeding, training, and devising balanced and effective teams are really the whole fun of the game, in my opinion. Couldn't care much less about filling the Pokedex outside of a completionist need. But breeding? Man, it's great. I've spent a full day breeding a single Pokemon (Aipom), and have two boxes full of semi-rejects that aren't as good as they could be, but I still have fun with every moment of it.