Am I missing something? This is a freshman doing the IB diploma program. Correct?
So why are you also taking DE classes? IB diploma is regarded as very rigorous. If you think also doing DE classes is going to improve your application, you are wrong. So just stop. Do an amazing job on your IB diploma course. Get the highest grades in your high school, and keep up with the extra curricular activities that you love.
Super selective colleges are not looking for academic drones. They want rigor, high grades, and genuine involvement in activities. The IB program has plenty of rigor already. There is no need to take other stuff. The same goes for trying to self study a bunch of APs. Don’t bother, because colleges won’t care.
The #1 best thing you can do for yourself right now is stop focusing on the most selective colleges. Find colleges that you like and can afford and most likely can get into. Those colleges are the most important ones on the list. And you don’t need to do that right now. Enjoy your summer of being a kid, because it doesn’t last long enough. You can think about colleges next year.