Hello, Girls. You did very well with your English.
From what I've read, you might have trouble finding a veterinarian. If you can find one, that's the best thing to do. Even a veterinarian who handles birds would be good.
Getting it water is the first thing to do. If you can get it on a plant in a warm shower (point the water to the wall so it bounces onto the plant) and let it stay there for 10, 15, even 20 minutes that might stimulate it to drink.
If you can get it drinking, then start offering insects. I don't know what you have in your area, but small worms (the kind that turn into other bugs) might be easier to start with.