Sounds like the living situation is a big factor. Any chance of changing this placement?
Yes, you should find a way to discuss more with your parents. Sometimes, the ‘glass half full’ approach works. Good, good, but then the challenges.
And this. IF you know what you DO like to do, plan time for that. I used to escape to a museum or English lang movie. Or McDonald’s. Maybe you enjoy music and find the right clubs. Or get a bike and ride, jog, read, have a hobby. Things can feel more normal.
Yes. You’re seeing some of the cultural differences among “English speakers.” That can be tough. How can you find other Americans? They’re there. Not for best buddies, but the common frame of reference. When I backpacked alone, by train, I found myself leaning toward other US folks.