My answer was to teach no more than 2-3 hours a day. I edit and write for extra income, and find that this solitary work recharges me.
The teaching is only seven 90 minute lessons/week. Re. staring - besides the students in class staring, which I guess they need to do when I'm instructing them, I get stared at by 1000s of students on campus. And 100 000s of people on the streets. And It aint cuz I'm Brad Pitt's brother in China.
Re. solitary stuff - I've become much more insular in the last ten years. Not sure why..
Burn out (or whatever people want to call it) is a funny thing because it's very difficult to spot any obvious build-up.
My main advice would be to take a break as soon as possible. Preferably quite a long one - 3 or 4 weeks if possible. You should be coming up to your uni break reasonably soon, no? And the IELTS can be easily dropped for a month or so.
Could be burn out. Every time I have a month back home in SA, or even a few days in Taiwan (like last month) I come back and feel charged up .... for about three days. Uni holidays are coming up - four months of them (unpaid), and yes, IELTS can be put off for a month.
Where do go Mr Tomthorne? Somewhere in SEA? I got some loot in the bank that could roll a vacation, but there's times where I've left Thailand earlier than expected, out of mmm, boredom. One solution would be to spend more time with quality people and they're not that easy to locate in this neck of the woods.
I remember leaving China in frustration after my first six months here. Flew to Bangers, got a cheapo room in a guesthouse near Koh San, and ended up hanging with the coolest crew - a Brit, a couple of Americans, a Dutch dude, a Class A South African dude whom I'm still good friends with (became a flight steward recently). Before I knew it two months had rolled by and I was happy camping again (my credit card wasn't happy though). I think I need a (support) crew...