To go to an international school or class in high school, you must take international courses (AP/IB/A-LEVEL, etc. ).
If you go to an ordinary high school, try to go to a better one (this will help you apply a little)
AP is not necessary if it passes ordinary high school. First of all, the TOEFL (at least 100+) must be guaranteed in these exams.
Then SAT (strive for 2200+), then SAT2 (strive for full marks), and there is room for taking a few more AP (calculus, physicsC, economics, etc.). Of course, if you are confident, you can cross-prepare, but since you are only in grade three, you can go through them one by one, so the effect may be better.
In addition, GPA (3.8+) If you apply for TOP30, of course, even if your score is not high, your grade ranking is -5%, 10% and so on. , it doesn't matter. However, most schools can be changed ... you should find out the situation of your school as soon as possible, because if you can change, you don't have to pursue high marks)
Also, volunteer activities should be sufficient, and academic competitions (scientific and technological innovation and other activities as long as they can get effective prizes) are better. If possible, you can consider attending the summer school of your dream school in the summer vacation of Grade One or Grade Two (provided that TOEFL 100+is the only course with credits). This is helpful. It is best to get letters of recommendation from some professors there.
That's about it.