My part time job's payment

Two days ago, I mistook to express about my part time job's payment. A problem of moneytary unit is very difficult to me. I got four hundred fifty thousand won a month by teaching high school student. I teach him eight time a month usually. But before, I told you fourty fifve hundred won, I remember. A problem of monetary unit exchange is more difficult to me. 450.000won(four hundred fifty thousand won) is about 440dollar($four hundred fourty dollar). have a good day.

Hello there [이름]! Thank you for the good composition you made. Yes I find it clear that most people get confused when talking about money. Kikiki… Anyway, thank you still for sending this message. I believe that you could get through to that difficulty once you try to master it. Furthermore, you did some flaws on grammar from your composition. Please check your vocabularies and polish  your verb tenses. Over all, you did well! Keep it up and I’ll see you tomorrow! T. ABBY My part time job's payment >> correct >> The Payment I receive from my part-time job. Two days ago, I mistook to express about my part time job's payment. >> Two days ago, I had a mistake in telling you about the payment I get from my part-time job.A problem of moneytary unit is very difficult to me. >> I have a problem talking about monetary units. >> A problem on monetary units is with me.I got four hundred fifty thousand won a month by teaching high school student. >> I get four-hundred fifty thousand won a month by teaching a high school student. >> I get four-hundred fifty thousand won a month through teaching a high school student.I teach him eight time a month usually. >> I usually teach him eight times a month. >> I normally teach him eight times a month.But before, I told you fourty fifve hundred won, I remember. >> But I guess I told you before, it’s forty-five hundred won. >> But as I could remember, I told you forty-five hundred won which is wrong.A problem of monetary unit exchange is more difficult to me. >>  A problem on the monetary unit exchange is more difficult for me.450.000won(four hundred fifty thousand won) is about 440dollar($four hundred fourty dollar). >> 450,00 won (four hundred fifty thousand won) is about $ 440 (four hundred forty dollars). >> 450,00 won (four hundred fifty thousand won) is equivalent to $ 440 (four hundred forty dollars).have a good day. >> Correct (Be careful with the capitalization of words and punctuation marks as well) >> Have a good day!