My honest opinion is that the school should not have offered them that early.
I think your scores are very good when considering you took them in 8th and 9th grade - and admission reps will recognize that. But by the time you’ll graduate high-school, the most highly-selective schools (if that is even your ambition?) will likely see a good number of other applicants who took those courses later and tested with 5s across the board.
Of course, your application will have a 4-year transcript, with a GPA possibly weighted up for the AP level courses. Also, your transcript will show that you consistently managed challenging course-levels, which will be looked at favorable by most colleges.
I’m curious - how well are the four test results in synch with grades you earned in those classes?