Please Chance me for Brown ED

Please Help! And should I postpone my application to RD to raise my GPA a tiny bit or take the SAT II’s if that’s even possible?
Objective:
SAT I (breakdown): 690 Math, 770 Reading (1460 Composite)
SAT II: Didn’t Take Any
Weighted GPA (out of 4.0): 3.6 -no unweighted-
Started with 2.8 GPA Freshman year, strong upward trend.
Senior Year Course Load: IB DP - English, Information Technologies in Global Society, Visual Arts, Biology, Mandarin, Mathematical Studies, Theory of Knowledge- ALL IB Classes, 3 HL Exams (Bio, English, ITGS) SITTING FOR IB DIPLOMA IN MAY
Major Awards (USAMO, Intel etc.): National Merit Commended, two published poems. NO OTHER AWARDS

Subjective:

Extracurriculars: Horseback riding (3 yrs), MUN (1 yr), Math Club (1 yr), Human Rights Debate Club (1 yr), Poetry/Dance Club (3 yrs) -President-, Student Advisory Board (3 yrs), Interact (3 yrs), GSA (3 yrs), Library Volunteer (6 years), Peer tutor (6 yrs), Cancer Walk Face Painter (3 yrs)
I take a lot of classes on Cousera and I want to incorporate that into my Application somehow.
Job/Work Experience: None
Volunteer/Community service: 100+ hours, Nature Center, Dog Shelter, and Library
Summer Activities: Harvard Summer School: Biomedical Ethics, Political Philosophy (8 credits)
Essay: Eh, Wrote about my mother’s hospitalization and how I’m a warrior (passionate about helping people and angry) -7/10-

Applied for Financial Aid?: Yes
Intended Major: Undeclared/Philosophy/Pre-Dent
State: Connecticut
School: #2 in State, IB Magnet
Ethnicity: White
Gender: Female
Income Bracket: 100k
Hooks (URM, first generation college, etc.): NONE