My advice is try not being a lazy glutton back home in the states hehe
Discussion
If you really want to lose weight it’s simple, fast
Instead of the gym, simply walking everywhere is sufficient cardio . I would run on the treadmill in the states prob a few times a week, swim everyday 
But yes, it’s the food, you’re a victim of circumstance, there are no fat ppl in Europe, and nothing is your fault hehe just believe everything on the internet. Comfortable lies are nicer to hear than the harsh truth, that it’s 100% your fault