I plan on studying BME for my undergrad (premed) because I have a passion for maths, biology and engineering! 
I took the SAT twice and super-scored my score was 2080 (630 cr, 680 mth, 770 wrt, 11 essay).
I’m an international student currently in a British School in the Middle East, and I am taking my A-levels (year 12, which would be 11th grade). I’m taking 5 a levels, although one would normally take 3 (bio, physics, english lit, maths, f maths) and I am predicted to have all A*'s. I am also taking my maths A-level 1 year early. I have a dual nationality, Swiss and Greek and have lived abroad my entire life, and I speak 4 languages (Swiss-german (dialect), german, English and French).
I’m the secretary general of our Model UN club and have been a key leader in developing and organising MUN at our school. I’ve been to over 15 MUN conferences and won an award at each one, including 2 awards for outstanding delegate at NaiMUN in Washington DC.
I’m on our schools running team and I’m an active participant in school Charity work, and have raised several 1000s of dollars for charity.
I play the guitar( for 10 years), bass (6 years), trombone (3 years) and piano (1 year) and have had lead roles in our schools and outside plays for the last 3 years. I am passionate about song-writing and have a youtube channel with several thousands of views.
I am also a leading member in our schools debate club, and have attended a debate competition at Yale University at which I won 3 medals. I was recently awarded 1st place in a national competition for debate as well and have also received a certificate for having the highest mark in the country on my French iGCSE.
I have consistently been in the top 10% of my classes throughout high school, although I have always taken an overwhelming course load of subjects.
And I plan on taking 2 subject tests: maths 2, and physics, on which my teachers told me that I should reasonably be aiming to score in the 750-800 range, based on my academic performance.
My application essays and recommendation letters should and will be good too and I plan on writing them over the summer
My school guidance councillor says I have a chance at these schools (my top picks), what do you all think?
JHU, G-tech, Cornell, Upenn, Duke, Berkeley, UCSD. 
I’m sorry for the essay, but any advice or thoughts would help! I’m happy to share any other details if needed. Thanks in advance!