I let her walk on me for so long when it stopped there was so much backlash. Still coming my way though.
That's to be expected, b/c she has ruled the place for so long that she's not going to want to play nicely.
There is a lot of free information on the web about NGS, so keep studying it and don't depend totally on the hyno-therapy. It basically is finding your backbone and not being afraid to act like a real man.
Nice job at facing your W and telling her she can't speak to you in that manner.
Have you sought legal advice? These threats from the step-daughter to falsely testify........hum........maybe she needs to know the consequences for perjury? Just saying.........it may be all tough talk from her, but you never know. Get a lawyer's advice. Informing him of her preintened false report may protect you, but IDK.
How old is the step-daughter? Has she always lived with you, or 50%? Did you act as the disciplinary parent? My guess would be, no. She's learning from her mom how to make you cow down.
You can't "force" your W to stay with her friends, but if she comes back, you can repeat the same action the next time she says or does something to show disrespect toward you. Your overall message should be something along the lines of, "You can act respectfully, or you can leave". You don't have to eat whatever she throws at you. You are the head of the home. You are the leader and protector. Act like it. Stand tall, take charge, respect yourself, and ooze with self confidence. You can do this!
So I made Thanksgiving dinner and ate it, didn't say much. Still working on the if you can't be respectful we won't speak trend. Went out on Friday / Saturday and did my own thing. She was telling my daughter how angry she is that I went and bought new clothes. Plus she kept asking where I was and why I had left.
My oldest daughter is 17 and from my first marriage. Her mother ran off with her and I have only had her for the past year. She is the type that will do what it takes to get what she wants. Our issue is I wanted to be a parent and not her friend. She knows very well I don't care if she likes me or not. Told her we can be friends after she is an adult and can take care of herself. Her mother sent her to me after she had ran away from home.
For my 3 youngest children I am normally the enforcer. Also the fun one. Machiavelli asked is it better to be loved or feared by your subjects. The answer was both. They fear you when they do wrong and love you the rest of the time. Guess that applies to parenting.