Studying abroad has both advantages and disadvantage.As following:
For the advantages: You are rather capable of enligh -listening,speaking,writting, and no doubt that you can get a comfortable job in foreign companies or any company whose main transaction is with english or the pro you have learned outside .Furthermore,you can learn quite diversiform advanced techs or theories ,with which you may make a good deal.
For th e disadvantages:When you are back ,you are surely not familiar with the surrounding and the culture or convention it has .
It is hard for you to get a confidant unless the ones who have the same or alike background with you or those who can speak foreign,but that is of little possibility,therefore you may become lonely or very uncomfortable.