Why so many people dream about traveling?
Base on what I always hear to my friends travelling is their way to relieve stress and to explore other places. Seeing the beauty of each places and taking pictures as a remembrance is a moment to treasure.
You used to travel for years that might be the reason why you're tired when travelling, you travel not to enjoy but to work. I think you have to change your mindset whenever you're in other countries. Take time to relax and dont think that you're working, enjoy the beauty of every places you've been.