Should I take GED?
I’m currently sophomore( supposed to be a junior but since I'm international I made my grade lower) and have great GPA and extra curriculars. But since I'm international, my SAT grades are low. (4.0 unweighted GPA with 1220sat) do y'all think I should just take GED this year and apply as class of 2021? (since its test optional)
Rather than graduating early with a GED, I recommend taking a test prep course (some are free online) and taking the SAT again. The College Board recommends Khan Academy. If you take rigorous classes and improve your SAT score, I think you'll have a stronger application than rushing to apply this year under test optional. There's a chance schools will remain test optional for 2022 too.
I’m not sure what you’re asking. If your plan is to graduate high school 2 years early (I believe GED is the American high school diploma) to get a college boost you cannot do that. Most if not all American colleges do not allow you to apply when you are not a senior (the only exception is Carnegie Mellon which allows you to apply as a junior but only for special circumstances). Your high school also won’t allow you to graduate early since 1) it’s very rare, 2) there’s no way you met the graduation requirements (which is 3 years of every subject and 4 of English) so you’re not eligible to graduate early and 3) doing so will not help you get into college. If anything it will harm your chances since you would be applying with only two years of high school. That means a lot of your EC activities, grades, and difficult classes would not show up on a transcript (since you would not have done them), whereas if you waited you would have more time to develop those other parts of your application.
Maybe you should take the ACT; you might do better on that exam. It also makes no sense for you to prepare now since you have not learned nearly enough of the math and science needed. Wait a year and then start prepping since you will have learned more and thus do better.
Also - if you go to high school in the United States you’re not an international student. If you attend a South Korean high school then, yes, you’re an international student but I have no idea how their high school graduation system works. In the US you don’t take an exam to graduate high school; you just stay a student for 4 years and take the required credits/classes.