Korean I learned today.
한국어를 아주 조금 할 수 있어요. 그런데, 잘 못 알아들어요.
한국말을 아주 조금 할 수 있어요. 그런데 잘 못 알아들어요.
You can speak Korean a little, but you can't listen to Korean well yet.
"한국말" is better in this sentence.
You already wrote something in Korean, so I think you will be a good Korean speaker and writer soon.
Have a nice day~!!