All your stories strike such a chord! Slightly different in that I started off being the golden child (18 months btwn me and dsis). All changed when I was 5 and we moved back to the UK and my mother's DM came to live with us.
She undermined everything about my mother in the same way as DM does with Dsis and I. As part of that, DM was wrong about Dsis being the 'evil one', that was now me!
Was only when I had DCs of my own that I realised how very fucked up DMs parenting was. Seeing her do the things to my babies that had so screwed up Dsis and I was a revelation.
Since then, I have realised how very badly DM was parented by my grandmother - who is still an unholy terror at 98.
DGM was orphaned at 1 and had an appalling childhood.
I am not angry any more but I have very firm boundaries with DMs family.
From having an extremely tense and fraught relationship with Dsis, we are now building a wonderful adult friendship based on trust, love and respect.
Since losing my father and regretting the resentment I had towards him for not protecting us better and eventually taking refuge in drink (DM really was appalling when we were small and we kept being moved from schools when teachers etc realised things were not right) I don't want to have regrets when DM dies.
I involve her in our lives but have to constantly police the boundaries. I'm not scared of standing up to her when she pushes them and I don't feel guilty at the raging and martyrish flouncing any more.
It was initially hard to persuade DH to be careful with her but he's seen exactly how impossible she is now. He also loves her very much but is aware that she can't help but be poisonous. Being able to laugh at her antics with DH and Dsis totally draws the sting.
I love my DGM and my DM very much. I am fully aware of how toxic they are (DM has told a fair few members of her family that she doubts our most recent child is my husband's!) but recognise that they are victims themselves.
I used to get very upset at the (constant) nasty rumours DM would spread about me but have decided that people will believe what they want and so I don't engage. Tough at first but now I genuinely don't care.
Have never had counselling but am very keen to end this cycle and make sure I don't repeat the pattern with my DCs.
Reading all your stories and remembering my younger years has made me aware that I am probably a bit scapegoaty with my eldest (DS, 12). There is a big gap and he can often be too rough/impatient/unreasonable with his younger siblings. He is also at that age where he's just starting to be a bit of a sulky teen to boot!
When disagreements occur at home, I think I may be a bit too ready to think the worst of him and give the youngest the benefit of the doubt too often.
Anyone else feel that the pattern may be repeating itself despite our best intentions?
Perhaps we can support each other to make sure this generation is not blighted by the uncertainty and lack of self worth we've fought so hard to overcome?
Have started by making a list of DS1's best qualities and traits and will write down 5 things every night that he has done well that day and make sure to tell him how well he did.
Am also going to try and back up his authority over the littlies and give him some of the rewards of responsibility instead of just the chores.