In korea, it were national holidays call Seolnal which means 1st of the year in lunar calendar. In Korea, it is a national holiday called Seolnal which means 1st day of they year in the lunar calendar.

After spending times in Church on Sunday, I went to the my parents' home.

I met relatives who are brothers of my parents. I met my aunts and uncles

I decided to go on a diet but it melted away. I decided to go on a diet but that thought melted away

"that thought" makes the sentence more clear

It was snowy. It was a snowy day (or it was snowing)

On the middle of night, water in cattles shed had broken so my parents fixed it for an hour. In the middle of the night, the water pipes in the cattle shed broke so my parents had to fix it for an hour.

They were frozen. My parents were frozen (or my parents almost froze)

I made a hot tea for them but I felt so sorry. I made hot tea for them because I felt so sorry.

I should know their sweats and efforts. I should appreciate their sweat and their effort.