Stay Hydrated

The recirculated air in planes is super dry, and sitting there for hours can dry out your body quickly. Most people don’t drink enough water anyway, and flying makes it even worse. This contributes to jet lag too.
Before getting on an airplane I recommend you pre-hydrate by drinking a liter of water mixed with some re-hydration salts. Just don’t use you water filter with these, or it will get clogged! You don’t need to sell all your worldly possessions and become a homeless.
Just get out there more than you do now. Start with a weekend in a different state. Then maybe try a week in the country next door.
The new car, remodeling project, and the latest iPhone can wait. If you truly want to travel more, you can make it happen. Career breaks are possible. You have friends who would love to watch your pets.
It’s a big, beautiful, exciting, and fascinating world out there.