Will my background give me an advantage in the college admissions process?

I am a Pakistani female with a severe disability, and am currently applying to Stanford and the Ivy League schools. I have an ACT score of 34 and and have a 5.0 GPA, and have interned at various universities. I am also the president of multiple clubs at school, and will be a National Merit Scholar. My essay is about overcoming the hardships and turbulence that I have faced as a result of my diagnosis, and how I have overcome it to achieve academic success. I hope to have a career in international affairs and start a charity to help schoolchildren in Pakistan.

Other Factors:
My older sister currently attends an Ivy League school, which is also my dream school.
My parents are both legacies at an Ivy League school

It might, yeah. Impressive, to say the least.

Did you apply early to your Ivy legacy college?