Have I Messed Up My Chances of Getting In?

I am a senior in high school, and I applied RD to Elon University, which is my top choice. My grades thus far in high school have primarily been B’s, with a mix of a few A’s and the very occasional C. I just ended my first semester of senior year, and did not do as well as I have in the past. Out of my 5 core classes (IB), I got 2 B’s and 3 C’s. Will this negatively affect my chances of getting into Elon?

No, but halt the slide ASAP and get to work. A “d” or this pattern repeated when final grades come out and are reported to Elon could make this a bigger problem.