Try and find out if there is a homeschool group near you, we're part of 3 and they offer a lot of different things, we have homeschool basketball, football, soccer [[I think]], Baseball, Softball, and... something else, teams.
I'm homeschooled [[obviously]]
But I'm still friends with alot of kids from some local schools, so if you have any local events that you think teenagers will be at, go to 'em, and introduce yourself if you see someone!
Maybe this will help?
http://www.home-school.com/groups/I wish you luck!!
[[btw, look at the schools near you, and see if they have any activities for all students, other than just the ones that go there]]
I hope I helped alittle!