I would be careful about enrolling in college early and missing out on the social aspects of HS. If you want academic challenge, I don’t see why you can’t take college classes on the side.
And isn’t UW Academy in their honors college and offer smaller classes?
Also, how did you determine what schools are you dream schools? If you are bored, why not think further out and explore and figure out what you want to do for the next 40 (or at least 20) years of your life and work backwards to figure out how to achieve your goals?