Ok, so right off the bat I notice that your EC are extremely rigorous for a sophomore and that’s good! You still have a lot of time to develop your resume. What are you truly interested in/ passionate about? What would you continue to do even after you get accepted into college? From your EC, it seems to be science. Think outside the box. As a fellow science research student myself, I have some advice. Try to get a paper published in a scientific journal- this will be very impressive to colleges. In order to do this, you will need a mentor at your local college.