Hello Najeong, how have you been?
I realized that you received a lot of messages for exchange languages, so I believe that you will not see my comment. I have a master's project and I will go soon to South Korea.
I have been studying Korean on my own and I work for a Korean teacher, too. But i need to practice conversation, my level is very beginner. Although I have already done the topik and taken the basic level but conversation is way much dificult to me.
I understand Spanish, English and Portuguese, if you want to practice. Congratulations about the initiative, I see that it is difficult for natives to help foreigners like that because of the language barrier.
Regards, sow!