Just to reassure you that this was common at my D’s HS too. Her HS greatly limited the number of APs, and juggled to accommodate as many as they could, but it was very unusual to get the first choice schedule.
My D’s junior year schedule was a hot mess because she had some major conflicts but in the end it all works out.
Sounds to me like your schedule will be plenty rigorous. Hope you have a great school year!