Today, I feel immensely productive. I wrote 11! emails in Korean, and answered the question of Korean Air - What motivates you to travel? - in Korean. During the past few days, I've been focusing on 'reason'. So I'm starting to grasp how to ask about 'reasons' or explain my own 'reasons' for doing something.
I also discovered a new blog: https://spokenkorean.wordpress.com that could be helpful for Korean language learners.