Chances of getting into Boarding Schools

I’m currently an 8th grade boy studying in Hong Kong at an international school. I have decent grades. (Mostly A’s, some B+'s and B’s). I haven’t taken the SSAT test but on my three practice tests I scored 2302, 2247, and 2247. I will be taking the October test, and I am confident I can do well. I play a lot of tennis, and I’m on the tennis school team. I’ve played piano for 5 years and I am part of the school band. I am part of my school’s student council and sustainability council. I am visiting Vietnam this year to volunteer at a local school (teaching, maintenance etc.). I have pretty good relationships with my teachers. I’ve also visited several schools such as Exeter, Andover, Middlesex, Milton, and St. Paul’s and done my interviews which went pretty well. Can anyone tell me my chances of getting into the schools I’ve mentioned? Thank you all for your information and help.

I also forgot to add that I am very interested in the sciences and foreign languages.

Firstly, thank you for taking the time to read this and I hope you give me your honest opinion. I’m an Indian student, applying to the top 10-15 schools, but exeter is my dream school. I really, really want to get accepted.

These are my achievements:

  1. Served in several leadership positions in the past few years: President, School Prefect, Co-captain of the Varsity Soccer team, School Literary Magazine, Editor, Chairperson and Moderator at Model UN, Secretary of Environment Club
  2. Finalist at National Spelling Bee
  3. Awarded: Best History student of JB Petit High School, Best all-round student of Billabong High (out of around 170 students), Award for extraordinary achievement and excellence in Hindi, English, French, History, Geography, Art (in past few years)
  4. First, second and third rank in several district level debate competitions
  5. Best Delegate award at Model UN (twice), Outstanding Delegate award
  6. Finalist at the prestigious Milind Deora Soccer Tournament
  7. First and second rank in several district level art competitions
  8. First, second and third rank in Indian Dance district competitions
  9. Took initiative in several volunteering projects: Raised funds for an orphanage by organizing a bake sale, co-created a donation website to help cancer patients, tutors local underprivileged kids biweekly ran the TATA marathon to raise funds for charity, organized and participated in several local beach clean-ups
  10. Speaks English, Hindi fluently, currently also learning Arabic and French
  11. Independently studying university-level English through a Harvard University Online Short Course

My recommendations are absolutely amazing, and I’m pretty good at writing essays.
However my grades are mostly high 80s-90s, two 70s and I got completely horrible grades in math (<50). I’m also worried about my ssat. I will be giving it in December this year, and again in January if I don’t do well. Right now I’m averaging a 78-80 in each test. I know I’ve just started studying and there’s plenty of time to improve but still super worried!
Oh, and I’m also applying for financial aid, at least 70%. What are my chances?

Since you are applying for financial aid as an international student your chances are slim to none…but not impossible however quite unlikely