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~!!