"Trying to organise catch ups, buy and wrap presents and most importantly put up the Christmas tree."

I haven't bought and wrapped presents yet, and we didn't put up the Christmas tree yet either, but I/we will do.

I will spend Christmas with my sister and with her family. She have a husband and they have three kids.
Two boys and one girl. They live in the other side of the country. I will go to them.
The presents will be for them.

Merry Christmas to everyone!