RocketRaley,
I pm'd you about some social groups near you. Let me know if I can help. Editing to tell you that I know Emanual in Hartsville offers some classes ala carte to homeschoolers, I think Robert E Lee will too if you are interested. Maybe you could afford just to let her take one, or two classes for the experience of it.
When you take on educating your children, you also have to make allowances to offer them social opportunites. There are homeschooling groups in every county and almost every kid friendly facility. In SC we have homeschooling Mondays at the zoo weekly, homeschooling classes at the Museum weekly, all of the aquariums have homeschooling programs. I live in a rural area and there are 12 families within a 10 mile radius of me that homeschool...we make an effort to get together. There is also the rec. department which offers all sports for very little $$. There are classes every Tues. in Camden for all ages, Spanish, History, Latin...etc. There are homeschooling classes at the Fine Arts Center in Camden. There are homeschool days at the ice rink, the bowling arena, the skating rink. There are lots and lots more opportunities to do things for all ages. There is way more out there than most families can schedule. Sumter has tons to offer, which may be closer.
I just realized that Florence may be closer than Cola. I am in the middle of both. Florence has as much as Columbia has to offer. I can get you a list together of what they have too if you'd like. Just name a bigger sized town and I'll find ya'll something to do.
Let me know if I can help you enjoy this time with her anymore. They are grown and gone so fast.
Editing one last time to tell you that there are also volunteer opportunities. I know that Lee County Animal Shelter needs teens to come in and help out. If you've never seen the shelter it is stuck way out on Bethune Hwy, obviously neglected. I think there are already other teen volunteers there that she could hang out with. I'm asssuming that she likes animals, since you obviously do. I heard this from a volunteer with the Kershaw shelter.