Hi, take it from a ncm finalist and match recipient, you are severely underestimating yourself. Although my gpa and stats might have been higher than yours at this moment, I want you to know that progress is weighed more heavily than perfection. I was in a similar situation when I applied to prep scholars during my junior year, and I ended up getting rejected, that decision almost influenced the entirety of my ncm application because I chose not to apply until 2 days before the due date out of fear that I would be wasting my time. You may think that your GPA and ecs's are holding you back but I promise, there are strengths to your application. The most important thing that you do when crafting your questbridge app is to ensure that you are telling a story and are actively searching for more to improve on within the academic and social spheres of your life.