I feel your pain. Trust me - it will subside in time. Likely it will never completely vanish.
Part of the problem, IMHO, is that, once one leaves this cult, he/she has no 'history'. You cannot chat with people in the community about how you voted in the 2000 election - you didn't. You cannot talk to people about how you did in high school athletics - you refrained. You cannot speak about 'family holiday traditions' - you haven't any.
Your history starts new when you leave - at least for many of us. Wifey and I are beginning to have a few new traditions - it's fun, but it's not like being able to say we 'used to decorate this way when I was a kid' kind of thing. It feels quite odd to announce that this 'is my first birthday party' for instance, at the age of 50.
Perhaps you can develop a few traditions - go to the local high school sporting events, listen to music for what it says without 'labeling' it as we did as jw's, push out the envelope a little bit, within your own framework. As for the kids - show them that you love them by doing things that keep a bond. You still have contact with them right?
I truly am sorry you are hurting so much right now. Dig into life now - some things will stick in your mind forever, till no more thoughts are there - it is impossible for most of us to 'erase' our past. But we can relish our presence. I hope you do.
Jeff