I want to encourage you to seek God continually and remember that your children are His. I recommend that you try to find a Moms In Touch prayer group in your area. I don't know if you've ever heard of the group, but here is their website:
http://www.momsintouch.org
Mothers usually get together once a week and pray for their children, their children's schools, teachers, administraton, etc. It was a blessing for me to be a part of a group when my oldest was in high school.