No one can tell you how to get into Yale. The truth is that so many exceptional students apply to Yale and so few can be accepted that unless you do something really extraordinary, it comes down to luck whether you get in or not.
The good news is that there are lots of other wonderful programs out there! Then do the things that everyone always tells you to do, get great grades (and work hard on your English skills), get meaningfully involved in activities, study for the ACT/SAT to get good scores, and write moving essays that really capture why you're a good fit for that school (have other people read them and help you edit them).
Good luck, congrats on doing well so far, and I'm sure you'll be fine!