chicki, I can understand how you feel. I am so sorry for you. You are trying but that is the problem when there is a physical affair going on it makes it much tougher to make ammends. What is it that this OW has over you?
I havent been to church in 2 weeks since I have been busy with moving and stuff but I can relate to your situation. I gave myself to God to understand what drives me to do things I did to my W and I asked HIM for forgiveness. After all that guilt was lifted, my spirits lifted up so much. Now, I am a different person and W is coming back to me.
Why cant your H go to church? Do this, invite your H to church, dont compel him to do this just invite him.
See the W, Listen to the W, but dont Speak back to the W. Bridle your tongue...