Is Harvard possible for me?

thanks for all the insight. to answer some questions: my gpa is (relatively) low due to personal issues i faced sophomore year: my sister/best friend was diagnosed with brain tumor, and i let myself spiral after that. i’m writing my common app essay on how her diagnosis led me to join a research team studying RNA interference (a potential cancer cure) at my local university. my gpa does NOT put me in top 10%, in fact it’s barely top 25%. i want to go to harvard because a) diverse programs that you can modify and tailor to your desire b) lots of research opportunities c) need-based aid to be honest.