Words

Oi Hi guys!!
I dont know how to write very well in english.
But, I will try.
Im a nurse in Brazil. Its very hard work because people dies die.To be health healthy is very important in whole life.
Happy new year for us.

Words

Oi guys!!      =      Hi guys!
I dont know write very well in english.   =  I don't know HOW TO write well in English.
But, i will try.                    =    But I will try.   (the comma is not needed but could be used if you wish the reader to pause)

Im nurse in Brazil. Its very hard work because people dies .To be health is very important in whole life.  = I'm a nurse in Brazil. It's very hard work because people die. To be healthy is very important in life. (Or, "It's very important to be healthy your whole life).

Happy new year for us.  = Happy New Year!  (to us?  to you?  It's a happy new year for us?) I'm not sure what you mean.

Don't forget the APOSTROPHES!  Don't. I'm.  It's.    English, Portuguese, French etc all get CAPITALS.

I understand what you wrote - so, well done!    More practice with the grammar needed!

Words

Hi guys!!
I don't know how to write in english very well.
But, I will try it.
I'm a nurse in Brazil. It's a work very hard. because people die .  Being healthy in whole life is very important.
Happy new year for us.