I saw a psychotherapist for 4 years. 2 years in I went NC with my mother. The therapist then spent the next 2 years trying to persuade me that I needed to rebuild my relationship with her. Turns out psychotherapy believes the family should be together no matter what.
I wasted 2 years of therapy trying to convince the therapist the NC was a good idea. Never managed to convince him. I'm now 12 years NC with my mum. NC with my dad since 2016 (there were periods of NC from 2006). No grandparents to worry about (I would have though if they had still been alive). Effectively went NC with one uncle and aunt as they were trying to undermine the NC and suggest I was being childish etc. Uncle died back in 2012, was at the same time my exh was leaving (abusive exh!) so didn't miss him or go to the funeral. My sister made contact with me and we have a great relationship now (after a period of NC). Had 6 years detangling myself from abusive exh.
I found the therapist's attitude (as what you think as a peer to you) to be damaging, makes you feel like you are 'wrong' for wanting NC. That it would harm me. In 12 years I have raised two children practically singlehandedly, been nearly on the streets with them due to exh, been through the court system multiple times, been on and below the breadline for at least 2 years with no fridge/washing machine/car for months at a time. In all of this I should have (in my mind, like 'normal' adult children) wanted/asked for my mum's help/shoulder to cry on etc. Not once have I needed HER or wanted her to help me. I have needed A mum's shoulder to cry on. Just not her's. So after 12 years I'm looking back at all the shit and thinking well, at what point did the therapist think it would be helpful to have my particular mum in my life 'helping' me in anyway? She doesn't help. She hinders, both physically at times and mentally.
Sorry being a bit rambly. You are very early into NC. I found for the first 4/5 years at least terrible guilt and not knowing for sure I had made the right decision. Mainly down to her and my dads emotional blackmail. It was on my mind CONSTANTLY. Reliving old arguments, having new one's with them (in my head), listing the ways they hurt me, and a constant justification of what I had 'done' to my mother by going NC (she acted like a small child which then engaged the maternal side of me). Mentally I look back and wonder how I got through it all. There are things I did in the process, things I wrote, things I did, that I feel a bit cringe about now, BUT they were all part of the process of grieving and accepting my parents were gone now.
FWIW I think changing your name is a brilliant thing. Your aunt probably has no idea of the depth of the abuse so doesn't 'get it'. I do. I understand. I think its a positive forward step for you to take. Not that my opinion matters as I'm just some random stranger! But we all do what we can to recover. Whatever feels right. Your mother is the one who should be feeling that shame. Not you. Hold your head up, you have survived so much. Your mother will most likely attempt to suck you back in. Your aunt might be a conduit, I agree with limiting what you tell her. But you can do this. You have realised the abuse, you have even spoken to your mother about it, you have gone NC. All you need to do now is maintain that 100% as possible. My mental state gradually calmed over the years. It did take years to calm (sorry!) but I got there. 12 years on I cannot tell you the last time I thought of an argument in my head I've had with my parents. I have no idea. They just do not cross my mind at all now bar when my sister mentions them. I feel completely divorced from them. Last week my sister had a phone call to say the paramedic's had been called out to my dad, she started crying out of stress. My response was not to ask about my dad, but helping her get packed up so she could go to them. I cared about her. Not my dad. It showed me how much I had moved on.
So in short (ha ha!) its early doors yet. Its a massive thing you are doing. But you really have done the worse bit. Peoples mental state does change when the 'threat' goes. All those feelings that have been suppressed so long can be safely aired and vented. To that end maybe, I did think if I ever went down the therapist route again...I would try a counsellor. What I really wanted was not an explanation (drama triangle, though that was helpful at times), I just wanted someone to listen to me rant and vent and cry and have that shoulder to cry on. Not someone 'knowing better' and telling me to do something I did not feel was right.
Things will get better, not today perhaps or tomorrow, but a gradual working through all those complex emotions and feelings that come with NC. Just think, you are now free of her physical presence. You will still carry her voice mentally in your head, but with time you can quieten that voice too. Just take things day by day. Be kind to yourself. Get yourself a therapist/counsellor if that is what you feel you need to help. Link with others on here (stately homes thread) to help air things. You can do this. It will get better, just allow yourself your grieving and anger. It will be okay x