Happy New Year!!!

Time flies so fast (or "so quickly", which is technically more correct).
3 days to go. Goodbye, 2016 and we welcome, 2017. (you're talking to the year 2016 and you're talking to the year 2017, so you put a comma before the thing you're talking to like "Hello, Mhelody!". Virtually nobody does this, but if you want to be correct, you can do it. And there are times when not doing it leads to silly and embarrassing mis-communications. But, again, virtually nobody cares. :))
I am also excited to welcome 2017 because it is another chapter of our life.
I enjoyed my 2016 which I considered as a lucky one. Why?
Number 1 is:
My family are always complete and happy. (do you mean "together and happy"?)
Number 2: I got a good job.
Number 3: my sister and her family went to the United States.

Those were my treasures in 2016. (even though it's not QUITE over, you're talking about things that happened in the past).
And now 2016 is almost over but I keep on praying that this coming 2017 will be so exciting again with the guidance of the Lord!!!

I welcome you, 2017!!! (again, the comma that, sadly, nobody cares about. Poor comma :( )