I used a book years ago, being a long time self-helper. It was called "How to Break Your Addiction to a Person".
It was the closest thing I could find to what I was going through. It helped so much, especially to regain confident, control, and not feel completely crazy.

I also got a 12 Step devotional for women. A little extra reinforcement that kept me on track.
They say you can break any habit in 30 days.

We are not crazy when we are under the spell of one of these people. But we do have to get away. No matter what. Good Luck to you for real.