Not much. I've learned I really don't like teaching middle school students, they are too moody. Elementary school students can be a handful, but they never really get hostile, they might get upset but I haven't met one that got really hostile. Teaching middle school students is like walking through a minefield.
I will probably only teach for one more year. It's just not something I want to do long term. I would like to try to find another job in Korea that doesn't involve teaching. We'll see how that goes. I will move to Seoul in October and see how things turn out for me there. But I am going to give this country at least one more year before moving on. If things just don't work out then I will go somewhere else.