I got two B's second semester junior year of high school. How much does that ruin my chances of getting into a good school?

Thank you for the response! I’m still talking over cost and that kind of thing with my parents, which is why I haven’t listed any specifics down as a factor. I also have a list of some target and safety schools that I plan on applying to, however, I was just worried after getting the B’s last semester that I ruined my chances at some of my reach schools.