Welcome to SP--you're off to a great start here. Keep posting and tracking daily. Setting up your own Spark page so we can get to know you is a great help. Join a few teams of people with something in common with yourself--age, location, amount to lose, etc. And once you've worked through the "Getting Started" list, you'll know your way around the site quite well.
And remember, we're all in this together. We help one another to get to the goal of a healthy weight and lifestyle. Together WE CAN DO IT!!
While I think it may be difficult for you, remember that it's not impossible. I'm sure the starchy diet of fried foods has helped them over generations. They walk (as you mentioned) a lot more than we do, and they do physical labor more than we do. Also, carrying a little extra weight can be a hedge against the times when illness strikes the community--thin people don't have anything to lose and so go downhill faster. You do have a job on your hands, but I think it will be possible to eat the starchy fried foods with them, while keeping the portion size down and filling up with lots of fresh fruit and veggies, which sounds possible too. They may think you're a bit strange for eating so much vegetation, but as long as you join them in eating the fried starchy staples of their diet, you're not setting yourself too much apart from them. And you can always get support here on SP. I wish you the best as you begin your PC experience. Remember to keep the focus on being healthy, regardless of the weight. Any excess pounds will come back off when you return to the states and our less starchy diet.