A Little Bit About Me

Ok, well I'm a teenage girl that is really interested in reading and writing. I have always thought it would be awesome to make a living off of writing stories for others entertainment and my own. I have written many stories but none I would like to consider publishable. But one day i was sitting on the bus on my way to school and i was in a really bizarre daydream, and then it hit me like a ton of bricks. I had to go home and write it into a story. I have written 13 chapters and over 100 pages, but it is still very rough around the edges. So i was thinking get it published, but (yes another, but!) it costs big bucks to publish your work. I'm only a teenager and my parents aren't rich. So i kinda let the dream go, for now. I was thinking about it and I'm sure not every author has paid to get the works published, and if they did would they even sell. Now that is my dilemma if i do get published will it even sell. So i'm hoping maybe someone out there can give me some insight. What would you like to read? Tell me, what cant you stand about certain books and authors? (No bad mouthing, just simple constructive criticism). So if some one can help i would greatly appreciate it. :)

-CuriousWriter93