Good for you! I am homeschooled, and in advanced math. I'm actually in summer school because of my math skills: I was on an advanced math curriculum that unfortunately didn't have any books above the 6th grade level. We switched to another curriculum, but that put me behind (in other words, in tune with public school kids), and now I'm doing summer school to put me back in the advanced math catagory.
You're doing a great thing, homeschooling. It may be tough at first, but it's totally worth it. I'm in grades 8-10 because of it. Homeschooling is the best!
Do you have any opinion on Art Robinson's homeschooling techniques?
http://www.robinsoncurriculum.com/
If you haven't heard of Dr. Robinson there's a good article on him in my profile entitled "A Scientist Finds Independence".