You do have to stay no contact, you need to do whatever makes that easiest, I'd say moving is definitely a good start. That NC needs to extend to your sister as well, she's a head fuck. I'm sure she has her own issues, but she will have to deal with them, she only compounds yours. It's sad to lose contact with your nephews and nieces, but you have to focus on you and DS.
Your post at 10:04 is so sad, everything you went through is down to your mother being the way she was. None of it was your fault, she enabled the continued abuse you suffered and the situations you ended up in.
Your next two posts are great. (I'm sure you know this, but...) You need to work on getting to the stage where you can not only see yourself as that little girl, but you can also accept how wrong the other voices are.
You weren't a drama queen or a little actress (or no more so than the rest of us, less so I should imagine!) you were an abused child. That is hard to take on I would think, You were an abused child. Can you accept that statement? Any other way of thinking about your childhood minimises what they did to you.
Normal, everyday people won't hate you or reject you, they will admire you for coming through all of that and living your life the best you can. People who judge you from where you came from and not who you are aren't worth knowing.
However, people who have had dreadful childhoods are often not the best judges of character and are vulnerable to attracting the wrong kinds of friends and partners. You have to be careful, go slowly. Not because you will be judged, but because you are protecting yourself and DS.