Two quote form my previous post:
"I’m sure whenever you ask this type of question on MN, you will see some mums jump in and give you euphoric personal experiences that counter every single concern you might have"
"There are always some outlines, and outliner is more likely in MN due to selection bias, but to have a realistic chance one should look at what is the recent overall preparation effort of the students who get admitted to the target schools. In my experience, in those very top academic schools, the range of difference in preparation effort is not as big."