is all hope lost for me?

alright so i had applied to all the t20’s + cmu and washu and rutgers nb,so far i got rejected from uchicago, princeton, mit, and washu, and i only got accepted to rutgers nb. my grades are really bad (89/100 weighted gpa, bottom 12% class rank at a rigorous high school), but my sat is 1530 and i have really good extracurriculars involving children with autism and an extremely good essay about it. i explained that my grades were poor due to helping my younger brother who has autism develop his social skills and helping him with his homework for several hours a day. does anyone know someone who was in my situation who got into a t20? btw the reason why i dont want to go to rutgers is cuz it costs too much for my family to pay cuz we’re really low income.