I do not plan on going to spend time with my family who lives overseas.
What is your reason for not wanting to spend time with them?
I don't need to talk with them.
It's definitely your choice. It's kind of rude not to want to hang out with your family, though.
They aren't my real family, so I don't care.
This may make your family upset knowing that you are choosing not to spend time with them. Try not to take your family for granted because you never know how long they will be around.