chance me and help me find some target colleges!

Hi I am a junior at a public high school in PA

My SAT score is 1500 ( 720 R, 780 M) and my weighted GPA is 4.3 and my unweighted GPA is 3.9.

My extracurriculars are:

  • Work as a Kumon Instructor for over 3 years, Attended national conferences for professional development
  • 1st Degree Black Belt in Taekwondo, Won various 1st prize medals for various competitions, such as the Hong Ik Taekwondo Championship
  • Volunteer as a Summer Camp Counselor (with over 120+ volunteer hours), Student Volunteer for iRun4Life program
  • Blood Donor Ambassador for the American Red Cross
  • Secretary of the Red Cross Club at my school, Member and Winner of HOSA (Health Occupations Students of America) Competitions
  • Member of the Unified Track Team at my school
  • Executive Officer Position at the No Place for Hate Club at school, Certified Peer ADL Instructor
  • Ongoing Research Internship at the PA Biotechnology Center, Will soon publish own research and enter it into various science fairs

If you could take a look at all this, and let me know what colleges you think I have a chance at, I would really appreciate it. My dream schools are Georgetown, Barnard and Cornell but I am open to any suggestions that you might have. Also, another question I have is whether or not I should retake my SAT given my dream school? Thank you so much for answering if you do.

With respect to suggestions for other colleges, it would help if you stated your intended major. Looks like you might be interested in biology or biochemistry?