Good point, Falcon1. OP, if you want to study business, why apply to Ivies? Except for Wharton, none of these unis are particularly noted for business- and not all of them even offer it to undergrads. Is there any reason beyond getting in to the ‘biggest’ name you can to apply to them?
Remember that you don’t necessarily need to have a definite life plan to have discerned patterns about the intersection of what interests you and where your talents lie. You will need to think this through for the US universities anyway, to write the why this university essay, but it is important for you in figuring out what will fit you best. The Ivy league schools are rather different from each other- Cornell v Dartmouth? Brown v Columbia? UPenn v Princeton? Harvard v Yale?
Even once you get past a certain threshold of grades and scores (which you have), those schools are nearly lotteries, yet they actually do a better job than anybody wants to believe at choosing students who fit into their community (yes, there are outliers, but the point holds). You will do more to increase your chances of admission by learning about which one(s) is/are the most natural fit for you than by looking for more APs to take or scores to accumulate.
One thing that might help is thinking of your application as a narrative arc: how do the pieces of your life and accomplishments fit together into the developing story of you? why that university, that major? in what direction do you think you are headed? what role will university play in getting you there? and don’t forget: what will you add to the community?