
That must be really, really horrible. I'm very sorry.
I don't think psychological tricks are any sort of answer, just that they can
sometimes help make it bearable for periods.
But it sounds like your pain is way beyond that.
Do you not get any pain medication?
My partner's Mum has a morphine patch and uses both paracetamol by mouth and ibuprofen gel rubbed on, where it gets through the skin directly to the point of pain.
Through the three medications she gets some relief.