I have absolutely zero stress at all. Teaching in the UK I was stressed all the time and always snappy.
Here my boss has called me the most laid back person she's ever seen. I feel like a different person!
Worst: Leaving a teaching job I liked for a higher paid post in another school. Hated every minute for 3 years.
Best: Leaving teaching and moving to Falklands to work in conservation. Literally look forward to work every day. (20k pay cut worth it for my sanity!)