Hello guest: I'm sorry you in such a difficult situation.

I live in a major metropolitan area. But I grew up in & around small towns. So I have some perspective with regard to what you are dealing with. (I once heard it said that living in a small town is like going down into the root cellar!)
The obvious answer here, I would think, would be to move to a more metropolitan area especially if it could be one where other people who are originally from your country are living. That would help you make the transition to American culture. However, the only way for you to do that, I presume, would be if you were able to go to school somewhere. And, from what you wrote, it sounds like that's not really an option.
The problem is... the longer you keep to yourself... staying in the house all of the time, the more difficult it is going to become for you to get out into society & live a normal life. For one thing, if you're spending most of your time in the house, you're not getting the benefit of being out in the sun. This in itself can exacerbate depression. Plus, being out around people, & interacting with them, is something that has to be practiced. Social isolation can tend to exacerbate social anxiety disorder as well as depression, anxiety & even feelings of paranoia, I believe. The more one keeps to oneself, the more that's the only thing one feels one can handle.
One thing that occurs to me, assuming you have to stay where you are at least for the time being, would be to see if you could find another young woman around your age who would be willing to become sort-of a "sponsor" to you... a volunteer companion who would go out with you & help you to become familiar with the area you live in & the people who live there. The two of you could go to events together. (A lot of times, in a small town, these may revolve around the local high school.) She might also introduce you to some of her friends. As far as how to find someone like this, that would probably depend, to some extent, on your age. I take it you're living with your parents. Perhaps they could help you to find someone who would be interested in getting to know you. I do think that, in some way or other, you need to figure out some way of getting out into the society you're living in. Otherwise your circumstances are just going to become increasingly difficult. I wish you well...