First of all, people will be unaccustomed and uncomfortable when they are far away from their hometown friends and out of the comfort zone. Then you should find something you can stick to as soon as possible, find your goal, and approach him every day. You can lose weight 10 kg, or you can teach yourself Spanish. When you keep yourself busy, you have no time to think about those messy things. Secondly, try to make yourself comfortable and live every day well, and don't let some bad emotions from outside affect you. Finally, if you can't get into a good state soon, don't worry, take your time, life is long, but you must remember that you must not continue to be depressed.