I can't stop comparing myself to friends.

As title suggests, my insecurity is killing me. I work really hard and put in my best effort for every class, but I always do worse than my friends. For instance, my friends and I struggled in Organic Chemistry and Physcis, so we had to study a lot to get grades we want in the classes. I got barely received A- in both classes while all of my friends got high A and aced the class. I know my friends put in their best effort to get A as well, but I worked and studidd as hard as they did. I am... I can't stop comparing myself to friends.
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums