I've felt burnout a few times in my career while teaching (13 years now.) Sometimes it's just a rough class. Other times it's external things. Either way, the best way I can describe it is a greatly reduced interest/motivation to do my job. I've always been able to power through, and based on my student evals, they haven't noticed when it does happen. Sometimes you just need to put on a game face! Here's some ideas (mostly based on my experience as a MA student, as well as a math instructor.) Anything that involves a long-term commitment can suffer from burnout. This is why it is important to always mix things up. Keep a journal about what worked well in your classes, and what could stand some tweaking. Doing the same thing each day gets boring for you (and to the students!) A class full of disengaged students makes things that much worse. The internet should be able to provide you with a number of ideas to keep things fresh in your dojo. Changing the warm-ups or changing the drills a bit will force the students to pay more attention to what they're doing, and it'll force you to interact more with them.