"I did pretty well in the Indian education system, so I don't think so"
"And you don't know how tough 11th and 12th is in India"
Sounds like you're contradicting yourself...
Also, I was at school for about 12 hours a day with ACT + SAT Prep classes, clubs which attended competitions that I had to prepare for after school and weekends, 13 ap classes which are taken as university credit, among other time consuming and daunting tasks (had a class where we attended university seminars in our own time for example). Didn't have time to do anything but sleep, study, and complete my school tasks (barely even ate anything, only really started playing cs during the quarantine which was liberating and unique). I remember my parents called the police because I kept saying the workload would make me kill myself, it was just too much to handle but someone at an ivy league school did even more than me, because in the end I wasn't even enough for ivy league. I will live with that disappointment, regret, and shame for the rest of my life -- if only I had done more. America is not forgiving to the average, the same can be said about China and India