Do you know how many applicants would appreciate the chance to meet with any counselor, to receive any guidance at all, but have to navigate this process completely alone? You didn’t have a perfect counselor. Few do. Your classmate may be more qualified for elite schools, hence the support for such applications. His guidance apparently worked for you, as you were admitted to Cornell, so put aside whether you had the perfect teachers or the perfect counselor or the perfect high school and move on to college. Maybe your regret will motivate you to self advocate more in the future.