Purpose?

So, just finished watching a movie that brought up the question what is your purpose?
Some of the characters in the movie said their children, some said to be with the ones they love, etc. It really got me thinking, "What is MY purpose?" I don't have kids that I live everyday for, I am not married but I do have my family; mom, Anthony, dad and all of the other many relatives. But still the question plagues me, What is MY purpose?! I enjoy my job and my family and friends, but what is really guiding my life? I do want to get married and have children. I enjoy working with my students and coworkers, but is that enough. Is that enough for me? Is this what I wake up for everyday? Hmmm, it may be time to go back to therapy. :)