If I get a C in Calculus 3 in my sophomore year, how will that affect my chances?

I’m currently taking Calculus 3 through a local university at my high school, and as of right now it’s looking like I’ll be ending with a C. To elaborate on my background in math, I took AP Calculus AB and BC in freshman year (4 by 4 schedule) and got a B in AB and an A in BC. I got a 5 on the Calc BC exam and an 800 on the SAT Math II.

It is odd that a student three grade levels ahead in math, with a previous record of an A in calculus BC and a 5 on the AP test would have trouble with the next math course in the sequence.

Or was the course taught as a normal college course (less hand holding, more expectations of student self-management of reading, studying, and doing assignments) and that adjusting to such was an issue for you? You should think about what made the transition to the college course difficult for you and take steps to remedy that. Fortunately, you have plenty of time before you go to college for real, presumably with the opportunity to take a few college courses while still in high school to “practice”.

Yes, it is taught more like a college course - the things that probably made it most difficult for me were 1) not being able to make up a test I missed (even though I missed it because I was sick) and 2) balancing the workload with my other classes. Thanks for your help!