Howdy, and can I have some help.

Hey, I'm completely new here, and I really just started the Lord of the rings last year, and I'm just on the last couple of pages of the The Return of the King. And I find that it's an excellent trilogy! And'm really intrested in the topic of Middle-Earth and Tolkien's mythology. But, I'm finding the end of the Trilogy to be in-conclusive, like what happens to Sam, Frodo all the way to the end? How does Gondor turn out? What happens to Mordor? I have no clue and I want to know! Ahh!