When my DS got to five and started asking after my mum, I explained to him very gently that my mum isn’t very nice to me, and seeing her makes me feel very sad. It was hard, but as I said before it’s a very non-ideal situation.
I am actually really surprised at your therapist. I personally don’t think her advice has been good.
All I can say is I was basically treading water emotionally until I decided to break contact with my mother. I’d survive the last meeting with her, be depressed about the way she’d treated me, manage to recover just before I started dreading the next one. It was wave after wave of assault on my self esteem, recovering to a point, then another meeting. I also self harm and contemplated suicide in the past.
After my son was born she took an interest and I found it so hard to have boundaries with her over him. She would make him do really weird stuff, like encouraging him to go for a poo in our garden instead of taking him indoors. She’d paint with him but spill it everywhere, like all down the walls, and leave it for me to tidy up. And eventually it’s thanks to my son that I finally decided to cease all contact with her. I didn’t value myself enough, but I valued him. But still it took four years!
Laying down boundaries with abusive parents is hard. In my case, it was impossible.
Since I broke contact with her, my life has changed for the better in so many ways. I didn’t realise it at the time, but I was under horrible pressure and control from her and I was unable to grow. I hope this makes sense. Like every thought and emotional energy was used up just trying to cope with this weird, toxic relationship that caused me so much shame and guilt. Even being given a birthday present by her used to make me feel guilty, the slightest nice thing she did. Because I felt worthless and (whether deliberately or not) she’d done that to me.
Since then I have tapped into my anger slightly, which i believe is a step in the right direction. I believe depression and self harm is anger that you’ve turned inwards upon yourself. And various other relationships and friendships have improved. It’s like I can see things clearly for the first time, the way ‘normal’ people look at the world isn’t so violently black and white, it’s generally much calmer, more open, gentler and kinder.
I wanted to share this, OP, in case any of it helps. I don’t want to project my stuff on you but I remember I was so scared - disbelieving - about the idea that I could cut her out of my life, I actually needed my therapist to support me. My self esteem was so low. I looked at her as someone whose judgement I could trust, because my own judgement had been so skewed and shame-ridden.