Schools generally would appreciate your reapplication efforts and continued enthusiasm in them, as you are demonstrating perseverance and determination. Having said that, you need to spend extra time researching the schools, getting to know the history, culture, signature programs, and special opportunities that are unique to them.
The AOs will expect to see updates and upgrades to your profile, but do not embellish too much - they are experienced enough to see what’s real and what’s not.
An important thing to bear in mind is that most schools are still quite US-centric, no matter how much diversity and inclusion propaganda they have put up. The competition for financial aid from US students is already fierce enough, so the ONLY reason they would consider making it available to an international student is that you are exceptional in a particular field - for example, have demonstrated a potential to change the world by way of medical, scientific or environmental research, or starting a humanitarian cause that will benefit underprivileged groups around the world. Do not consider this a discrimination. The truth is that most members of the admission committees are simply not knowledgable about your country or your culture, and you have to work extra hard and present your case in a way that is easily comprehensible to them.
Again, you need to widen you net and stop being fixated on only the most selective schools. I don’t know what your main objectives are with a BS education, but the truth is that dozens of other schools could offer you an equally fulfilling experience. Good luck!