The incident in your childhood re your GM taking your S on holiday. Did you even feel you could say to your M that you did not feel jealous or was it a "done deal" so to speak? If sounds to me like she shut you down a lot and how hard, unfair and abusive is that? My M used to talk over top of me as though I wasn't there and it made me feel so angry, invisible and as though I did not count. I never said anything as I was scared of her reaction until one day as an adult I did and it certainly set her back on her heels. She mostly stopped talking over top of me and if/when she did I would always say something to the effect of "Excuse me, I'm not finished what I was saying" and eventually she stopped trying to making me invisible.
In my case it was all about finally and clearly being able to identify what she was doing in real time, why, and then having the agency to do something about it. Prior to that I would get confused and would shut down any anger, knowing something was happening that was not good but not quite knowing what it was or why I felt so emotional and that if I said anything life would get harder. Part of relieving this meant spending much less time around her and my FOO and the whirlwind of drama and chaos that makes it hard to think/feel. Ongoing exposure to her N drama meant I had to constantly be on guard so I didn't have the bandwidth to sort things out. Once I had more space I felt like I could breath and think and feel.
Maybe some of what you feel is based around exposure to her (and your FOO) which leaves little bandwidth to feel your feelings? Being around N's is as I've said exhausting and confusing and IMO they mean it to be this way. That's how they better control us or at least leave us so muddled we can't think/feel straight.
You have every right to be you no matter what she says or does but perhaps like I had to do you need to create a boundary/some space to be able to do that? Just my thoughts of course, you know you best and what is relevant.
In my case it was all about finally and clearly being able to identify what she was doing in real time, why, and then having the agency to do something about it. Prior to that I would get confused and would shut down any anger, knowing something was happening that was not good but not quite knowing what it was or why I felt so emotional and that if I said anything life would get harder. Part of relieving this meant spending much less time around her and my FOO and the whirlwind of drama and chaos that makes it hard to think/feel. Ongoing exposure to her N drama meant I had to constantly be on guard so I didn't have the bandwidth to sort things out. Once I had more space I felt like I could breath and think and feel.
Maybe some of what you feel is based around exposure to her (and your FOO) which leaves little bandwidth to feel your feelings? Being around N's is as I've said exhausting and confusing and IMO they mean it to be this way. That's how they better control us or at least leave us so muddled we can't think/feel straight.
You have every right to be you no matter what she says or does but perhaps like I had to do you need to create a boundary/some space to be able to do that? Just my thoughts of course, you know you best and what is relevant.
Glad you found us and I hope you'll settle in and feel comfortable soon.