The difficult lesson from growing up in Australia is that you either figure out jetlag or you spend a week of every trip half-asleep.
I figured it out and now get zero jetlag.
There are thousands of things I learnt, but here's the 80/20 when I land:
1. Get lots of sun in the morning
2. Turn off lights and wear blue blockers at night
3. 2mg pinealon
4. 6mg epitalon
5. Make sure you are very tired the first night