what the difficult when learning language

learning language is fun esp when language we learn is interesting. but what the difficulties when you learn new languange.

for me it's abjad n spelling. i learn korean language but because i already knew the abjad its no difficulties.. but when differentiate between one charachter to others characters which similar i cant tell the differentiate.. like spelling ㄷ and ㄸ and ㅌ. maybe for ㄷ is easy but for ㄸ and ㅌ i cant tell if i didnt see the sentence just listening it. and others similar characters, when just listening not know the word itself i cant write it.

abjad learn language escpesially language which own its abjad, the first thing you must learn is memorize those abjad. every abjad have unique characters, for me, those character it's too difficult because my mother language dont have characters like other language.