I usually feel awful after flying long distances. Some people travel well, and that’s not really me.
I usually can’t sleep much on a plane, even in business class, so I forcibly skip a whole nigh...
I started using the Timeshifter app and it’s been super helpful. Mostly, just start adjusting your exposure to light (sunlight, indoor light) and darkness a couple days before you travel. Helps you adjust to the new timezone way faster