Any other suggestions?
^
yes, you need to realise that you have some power. at no point you feel in control - even with a court order on your side, you feel powerless.
This feeing is NOT your fault, it is a result of abuse, but you need to address it and work to actively overcome it.
your 12 year old says horrific things, you feel you are powerless.
mum said cruel things to you when she was over, it made you feel small.
your exh mum says manipulative things to DS, you feel she is winning.
You suffer from horrific abuse, gaslighting, brainwashing and likely PTSD. I am so sorry all of this happened to you. It is cruel.
Authorities are letting you down (shocking and unfair. im angry at your behalf!) which reaffirms your believes of powerlessness.
I urge you to read up online as much as you can about gaslighting and power dynamics.
there was as excellent link from a pp about power dynamics:
www.alturtle.com/archives/172
Read the Divorcing sulking H - there are 5 threads on here, the poster found good ways to protect herself in communications.
Reach out to the pp who have been through similar, the wealth of advice and support here is brilliant. Pp gave excellent advise how to restrict communication. When suggestions sound impossible - reach out, ask questions
Im rooting for you, please find your inner strength.