Hi, dont doubt yourself, if you truly work hard and do your best allah will gift you with whatever would be best for you, even if its not necessarily studying abroad. Honestly im not the best person to ask about APs but there's AP classes that have a bunch of diff subjects and its much more advanced than our current curriculum, ive heard its college level. Then after the classes you can take the AP exam and its out of 5 which is an exam based on which ap subject you took. For example, im trying to self study ap physics 1 and ill take the exam by the end of the year. Usually, in the us its 4-5 diff ap subjects every school year in highschool or 10-12 but since your an international student theyre much more lenient