How do you correctly say the following? I'm trying to say: I don't speak Korean well, but my English is perfect. I wrote: 한국어는 잘 못말해요 하지만 내 영어는 완벽하다 Can someone please help me correct this or find a more natural way of stating this. Thank you.

Is this a correct statement? I try to write in a Korean journal everyday and include a word or phrase I learned. Would this sentence work? 오늘 나는 낱말을 배웠다 약속. If not, how would you say "today I learned the word..."