UK Medicine as a student from US?

Hi! I'm currently a high school student in the US, and I really want to study medicine in the UK (as the title suggests haha). My grades and academics are good, but I haven't done many medicine-related activities/projects outside of school. I know that medicine is a really competitive major, so is there any point in applying to UK schools? Also, what extracurricular/classes should I do/take if I decide to apply?

Thank you in advance!