International Student - Sophomore Year

<p>Hello there
I'm an international student living in Portugal. I'm still in sophomore year, but my goal is to in the future enroll in one of the top colleges in the US. I finished last year you 4.5/5 GPA (but lots of colleges don't care that much about freshman year) and this year and so far my grades are somewhere around 18/20. I'm taking history, maths (the most advanced kind of maths we have here), Portuguese (lit), Philosophy, English, Economics and PE though it doesn't count for the GPA (it's mandatory). We don't have AP classes in here, so I have none. The major that I would like to take in college would be something among the lines of film making and script writing with some lit in there. I have been a part of several 8 week theater and cinema workshops, although we don't get many opportunities like those here. At least I haven't been able to find them. Since I'm only 15 I've never had a job.
I haven't taken my SAT's or ACT's, I'm intending on taking them next year. I know that from now until then things might change, but I am good at maths and even better at creative writing, so I think i will do better in the writing part but I think it will be overall a good score.
I intend on participating in the AFS program next year and do the 11th grade of high school in the US if possible.
I think I will be able to get good recs, but it's 2 years from now so i'm waiting..
I have done 7 years of horse riding and won national competitions, I have had tennis lessons for more or less 2 years and I've illustrated a children's book, even thought that probably doesn't matter. I can play the piano fairly well but I have no specific training.
My school has no EC that I am aware of except from sports, and I have pretty much no idea about what I should do to improve my application since I intend on applying in the future to one of the top schools in the US that I've been checking out.
So if anyone can tell me what my chances seem to be so far and what I will need to do to improve them, I am all ears.
Thank you so much for reading</p>

<p>bumpppppppp</p>

<p>bumpbumpbump
forgot to mention honor roll freshman year and i would be the first generation in any school</p>