2. It's hard, mainly mental. The foreign environment is not so good. In addition, the days of wandering outside often are also very unpleasant. It is an unstable factor for the family. You should be mentally prepared. You know, those who cry after work, those who call home and even resign are all because of this.
If you think the second article is nothing, even like it, and you are sure that you can work there, then I strongly recommend that you don't take the postgraduate entrance examination. Now the graduate degree is useless. If you can have a very good job, you'd better work.