I just read this great rant by a movie industry bigwig, screenwriter of "A History of Violence." It's entertaining it's extreme honesty and openness about the craft of screenwriting, and it's funny, and it's called "I Will Not Read Your Fucking Script." I recommend reading it if you are any sort of creative person.

One of the best ideas is this:

If I can talk you out of being a writer, I've done you a favor, because now you'll be free to pursue your real talent, whatever that may be. And, for the record, everybody has one. The lucky ones figure out what that is. The unlucky ones keep on writing shitty screenplays and asking me to read them.

Because of the snarkiness of the last sentence it seems like a joke, but it's not. I too believe we all have something we are great at doing (I hesitate at saying "meant to do" but, y'know, a "calling"), and I think probably the highest success in life is to find that something and get to do it, and do it well, and enjoy it.