What to do to improve my chances for Stanford, Duke, Harvard, and a few others?

OP has not come back to CC since the first somewhat snarky response #1. I hope he/she comes back. @SJNccc called the OP’s EC’s “mediocre” but I think that’s too harsh, especially in context. I’m pretty sure OP attends a HS that is 93% URM students, at least 75% economically disadvantaged students. If OP comes back, I want to encourage him/her not only to explore Questbridge but also look into diversity fly-in programs at some of the schools, especially the LAC’s mentioned. And with more info about what the OP is looking for, I’m sure lots of CC members could offer helpful advice.