I would say you have roughly a 50-60% chance. Your grades are INSANE better than mine for sure, very impressive. Although you are lacking in your extracurricular you seem like a square in that area. But you definitely stand a good chance nonetheless, due to what it seems like your strong personality and good essay topic. BTW check out my chance me post (I’m also applying to Cornell) http://talk.collegeconfidential.com/cornell-university/2024642-cornell-early-decision-chances.html#latest