Finishing high school in one year

Hey :)

I’m a current sophomore in high school, but I’ve been trying to find programs to possibly complete high school during what would be my junior year and starting college early depending on ACT and PSAT scores for scholarships. I talked to my school counselor about it, and she said there wasn’t a way through my school, but what about online? Or maybe have my first year of college also count for my senior credits? I would have already met the core curriculum requirements by the end of next year, it’s just the additional 10-12 elective senior credits that my classes would be. There’s no other high schools around for me to ask about and my goal is to go to UW-Madison.

Thank you lots!