When I was 18 y.o. I decided that I would be a professional writer. I started to write and though my technique and style were... let's say "crude", I thought that by sheer will I could "brute-force" my ideas into the shape of a novel. Wrong. So I started again. And again. And again. I buyed some books about narrative, storytelling, character developement, and tried har to learn. I had plenty of ideas but it was like it were written in an alien language. Creativity is something we all possess. It can be trained by reading, watching movies, playing RPGs, whatever suits you. Technique and theory are the "tools of your trade". Those are things you must learn. There are seminars about crative writing, very good books about the subject (Robert McKee is a must have event if you don't want to write movie scripts). But even all the knowledge in the world is useless if you don't practice your art. So I keep writing and failing until, one day, I discovered that perhaps my writiing didn't suck and there were people (publishers!) interested on reading my work. Even then it took me another two years until my first novel hit the shelves.
And then the international crisis came and suddenly 25% of my country is unemployed (including me). That was a hardblow. A lot of publishers, bookshops and libraries shut down due to monetary problems. My editor just told me the are shutting down the publisher house.
Was it worth all the troubles along the way? It wouldn't be easy to give up?
Yes, it was totally worth it, every minute of all this time. To give up? Now?
No. Never.
So I picked another project, sended a couple of mails with a quick draft without expecting any serious response.
Fifteen minutes later I had a reply e-mail. "Of course we are interested in your draft".
Why do we fall? So we can learn to pick ourselves up.
In other words: try hard, fail, then try harder. Any number of times you need. Don't give up your dreams 'cause no-one would try to acomplish'em except you.