how to write these sentences in Japanse
in this paper, i will introduce New Year customs in Japan. New Year (shogatsu or oshogatsu) is the most important holiday in Japan. Most businesses shut down from January 1 to January 3, and families typically gather to spend the days together.This event is so important for the Japanese that all the offices, institutions, factories, and shops remain closed for the entire day.

welcoming new year in Japan isvery happy.i hope one day i will enjoy new year in Japan with my beloved

Question

how to write these sentences in Japanse
in this paper, i will introduce New Year customs  in Japan. New Year (shogatsu or oshogatsu) is the most important holiday in Japan. Most businesses shut down from January 1 to January 3, and families typically gather to spend the days together.This event is so important for the Japanese that all the offices, institutions, factories, and shops remain closed for the entire day.

welcoming new year in Japan isvery happy.i hope one day i will  enjoy new year in Japan with my beloved

Answer

Hi Yuri,
この報告（論文）では、日本の新年を迎える慣習（正月）について紹介する。正月（お正月）は日本において最も大切とされる休日である。特に1月1日から3日の間は、ほとんどの仕事は休業となり、多くの人々は家族とともに過ごす。
お正月は、すべての会社、工場、店舗が終日休業となるとても重要なものである。
Because this paragraph starts from "in this paper", I translated it formally. 
And from a logical point of view (because this is a paper), the last sentence seems not to be necessary, since already you say "Most businesses shut down...".
I feel it redundant.

日本で新年を迎えることはとても幸せなことです。いつか私も愛する人と日本で新年を迎えたいです。
I translated this paragraph casually.

Good luck!

Evden çıkmadan dil öğrenme fırsatını kaçırmayın. Deneyimli dil eğitmenlerimizden oluşan seçkimize göz atın ve ilk dersinize şimdi kaydolun!