I've been writing since I was a wee lass. I was reading before that; possibly while still in the womb. Don't think about that too much.
I started out with short horror stories and poetry. I was terrible at it. The poems not so much, but the stories were awful.
I decided to finish a book (and I DO mean finish--I'd started plenty throughout the years) when I was in my mid-twenties (so not that long ago because I'm young and will forever stay that way). Again, not my best work.
But that's the thing about writing; it improves with time. (It's also a good thing to know your work can't possibly be any worse than it was when you first started.)
What I love most about writing is having people tell me how much they enjoy my work; how my writing touches them; makes them feel intensely.
Bringing a reader to laughter or tears is a wonderful feeling for a writer, and no, I'm not sadistic. *insert evil laughter HERE* It means I got them to feel, to respond to something I created.
Also, I just like to make stuff up and put it down on paper. I have an endless supply of stories in my head; lots of stuff to share with the world.