Teacher burnout is not a personal weakness. It's a systemic problem. Australian data from AITSL and various union surveys consistently shows 30-40% of teachers report high burnout symptoms, and attrition rates in the first five years of teaching hover around 30-50% in some states. These are not statistics about people who couldn't handle the job — they're statistics about a profession that regularly demands more than it gives back.
Burnout has three dimensions (Maslach): emotional exhaustion, depersonalisation (going through the motions), and reduced sense of personal accomplishment. Recognising which dimension you're experiencing helps you respond appropriately.