DonH is right. Be prepared to tell the truth. Thats your resolve. You let your W know you won't lie and you are not using her script, because guess what its HER script, not yours and not y'alls. You tell her she can say what she wants but you are sticking to the truth. You dont have to have a discussion after that. The other thing is, this sit down is her doing, not y'alls.
Stop reacting to everything she does and says. You actions should be non reactive and even. No matter what she says or does you are the same.
I also think you are flooding yourself with information. You won't get all this information in, even in a year, so trying to do it in a few days or weeks will only confuse you. Take a step back. Work on one thing at a time. Time to get Sandi's 37 rules down first. Her rules help with detaching, GALing, 180s and validating. If you get a handle on those 37, you can worry about the NGS.
The best thing you can do now is focus on detaching with love and GALing. Work on these first and tell us how they are going. You can't do them for a week and then look for signs and if you dont get signs stop. These are life changes and not situational changes.
Its time to start these life changes for yourself and not your W or M.
M:37 W:37 T:11 M:10 S17, S13, S10, S4 BD:06/28/17 OM confirmed 07/20/17 Recon the M 10/29/17 Working hard:2gether
Onward and forward
This process is not a sprint it's a marathon! Patience, Patience, Patience.