am i good enough to apply to top US schools and is it too late?

Hi, Im a UK student with 11 9s at GCSE and predicted 4A*.

My extracurricular are:
Rowing ( national medals)
Lead environmental and feminist societies
Volunteer tutor
Volunteer at a hospital
Lab research

I don't know if its too late too make a competitive application to a few IVYs or top US schools or if its even worth it. Can anyone advise me if I could make a decent application or if its too time consuming to be done this late in the year.

I would be applying for 2024 entry

Thankyou )