17 next month
Holy stuff dude
Well, to get on-topic. To get into a filming career you can probably start off by making a pretty decent mini-series of sorts on teh internet. But before doing any of that get settled into a Job that pays relatively well for someone of your age, and save up some money to buy some film-making supplies or some nice editing software (You don't have to do all of this, these are all just ideas on how you can get started). But in the meantime start making some scripts or get together with a friend with similar interests and make some ideas for a mini-film or series and write the ideas down on a notepad or on the comp. If none of this works out then at least have a backup plan of sorts.
Thats all i really have to help you out man. I really can't think of anything else to help you out sadly. Im 13 so i can't think of all that much, but i'll see if i can find anything else to help you out.
Good luck.