@Throwawaydnf99 No problem! I can totally understand your worries, but think of it in the greater scheme of things. Sure, being smart as indicated by GPA, standardized test scores etc is important, but what's even more important is having direct research experience (publications, strong LORs from professors whom you've done research for etc.). Having such experience demonstrates to adcoms that you know what you are getting yourself into, and not just getting a PhD to "figure out" the next step in your life. Think of it this way, if you were an employer and you had two applicants, one of which is book smart, 4.0 GPA etc, and the other had applicable experience to job, but average GPA. More often than not, the employer is going to choose the more experienced applicant over the bookworm any day. This applies to PhD programs as well. It doesn't matter if you are a walking textbook reciting facts left and right. What truly matters is being able to take those facts, and design experiments to answer certain questions/tackle problems. So fret not, and good luck!