Now is Saturday Night!!! Horray!!
Last week, I am (was)very busy. Actually I am(was) busy, always!
In korea, the teacher have to do everything,such as  To teach the students, clean the class, study every subject(In korea, Elementary teacher teach every subject), study about teaching ways, do government affairs, drive the car for student's contest, etc. I do everything in school. So, one day is short, very short!

But, I am happy because of my students.
Sometimes they have(make) me feel sad, They are cute, sweet, Above all, I think I am a special person, because of them.
They like me, love me, smile to me,(but) even  at a time I feel like a loser. It is very special. So, I want( to  try my best to) help them anything.

Would you correct my note?

Now is It's Saturday Night!!! Horray!!
Last week, I am was very busy. Actually I am always busy, always!
In Korea, the teachers have to do everything:. To teach the students, clean the classroom, study every subject(In korea, elementary school teachers teach every subject), study about teaching metodsway, do participate in government affairs, drive the car for students' contests, etc. I do everything in school. So, one day is the days seem short to me, very short!

But, I am happy because of my students.
Sometimes they have make me feel sad, but they are also cute, sweet, and above all, I think I am a special personbecause of them.
They like me, love me, smile to me, even at a times when I feel like a loser. It is very special. So, I want to help them with anything.

Good luck with your work and have a great weekend!