我想去韓國留學呀<中學>

Yes, you may go to Korea and continue you study. The question is whether you know Korean language because the teaching medium is Korean language.

If you know Korean language, here is a list secondary schools in Seoul which are listed out according to the district name.
http://dir.empas.com/Education/High_School/Seoul/&v=a

Click in the district name and you will find a list of schools in that area with their HP provided.