I read your profile and something struck me, with your parents not supporting your dream to be an author. It takes a lot of time and skill to have a book worthy of selling, it's something you have to constantly work at. You likely won't have the talent to do so right away, but if it's something you really want to do, keep going at it, practicing writing, learning more about how to make a better story. Someday you can get there. Just don't give up until you reach that day. Writing isn't the most lucrative profession, so I'd recommend finding a job you enjoy, and then writing in your free time, at least until the day comes when you can make enough from writing to not need your normal job.
Good luck!