There are plenty of kids who got poor grades on AP tests and went on to have great success in those subjects in College. And when I say poor scores, I am not talking 3s or 4s. I mean 1s or 2s. Keep your chin up and go on to kill it in school!
I recently found an AP score report from 40 years ago and was appalled at how bad it was because I did not remember doing that poorly. I got all As in college in that same subject!