@arodriguez282 : You could check Brown admission facts (https://www.brown.edu/admission/undergraduate/explore/admission-facts) to see how your stats compare with admitted students. Being a valedictorian does help! Don’t worry about AP classes, your regional AO knows your school. As long as you take the most rigorous courses in your school. Your chances are as good as others’.
Once your stats are in the range, your application will be seriously considered. Then it will become much more of a qualitative assessment of your essays, ECs, and LOCs, and other factors that become part of a holistic process … but I do see your ACT is kind of low …