OP- the feeling of stress a majority of the time signifies something deeper than any of us strangers on the Internet can help you through. The prolonged unhappiness that you have indicated throughout your college life is not normal. If you can be more open with your mom, let her know. Maybe they just don’t understand that you are perhaps more sensitive to this not uncommon Indian style of “parenting” than other kids, who probably just shrug it off .
To give you some context -the educated Indian community in the US seems to have produced a lot of kids who are superpeople, and parents start to think this is a norm. Even the kids start to feel this way, and think they are lesser beings if they can’t hit the highest notes. I have stopped discussing college etc.with people who are not close family, and I encourage our kids to do their best, and not compare themselves to the superpeople in our family and friend circle.