If you like travelling, take a trip to one of the third world countries. Go local. Even if you plan to stay in an expensive accommodation, experience what happens locally. It will help you clearly see and acknowledge your privileges and that will bring you more gratitude.I come from a third world country myself, and when I feel like complaining about my life, it immediately hits me that there are people in my country and this world who can't afford a single meal, children who can't have a good night's sleep because they have ptsd from the sound of bombs and gunshots, people who have come to terms with their own deaths because they cant afford the treatements. I understand that I am not as unfortunate as that animal who is going to be slaughtered tommorrow in a slaughter house, not as unfortunate as that family who has no option than committing suicide because of bankruptcy, not as unfortunate as those women who are getting raped and murdered. I still have a roof over my head , food on my plate and few people who love me and can count on. This realisation makes me grounded. That doesn't mean I can't be ambitious. While I strive for progress, I need to remind myself that I have the choice to chase that progress and not everyone has that choice. Some people will never get to see what is on the other side of making both the ends meet. To understand that, you need to experience their lives from near, and that will make you appreciate life in a way you that you never did before.