Applying to US pre-med from the UK

I'm in year 12 and am kinda considering applying to pre-med courses at Ivy League schools like Harvard and Princeton but am not sure if I'd even have a chance with my stats, especially cause I've seen Americans apply as CEOs of non-profits or have 50 awards and won olympiads. I'm thinking neuroscience with a second in comp sci.

My predicted alevels are A*A*A*A in maths chem french bio respectively, and my GCSEs are 99999999987. I am also a US citizen as I was born in America but moved when I was 1.

Work experience I've done are a day at a GP, volunteering at a charity shop, volunteering at a nursing home, a week at a hospital and a week at a medical research lab.

Extra-curriculars are piano, figure skating, ballet, archery, school chamber choir, president of school medsoc, founder of diversity club, head of maths and bronze dofe.

I have no honours/awards at school