Have you thought about not homeschooling anymore and putting the kids in regular school?
I have to admit esp., with one of my kids I came close to putting them all back in. After my son quit school and subsequently got himself locked up I went through a period where I really doubted my ability as a mother to educate them. My husband really got mad at me for that, so did a lot of other folks but it happened and I'm past it now. But I really got close there.