Wannaexit, thanks.
I thought I should mend it with my mum and so I apologised for upseting her, today.
I said I'm sorry for the stuff I said in anger, she agreed my dad is a master goader and argumentative at the best of times. I said I should have thought about your feelings as well as mine. It is sound (but different) now between us, although we did get into another discussion about it and I explained how I felt, I said we should agree to disagree and leave it at that.
She then started trying to blame herself, (Gowd, they have a hold, don't they) but I tried to expalin the best I can that it's got nothing to do with her but with the way the organisation works. I said everyone who has a share in this organisation has a different personality, everyone's views is from a different angle but why do the same stories and feelings come from people who leave it.
I then told her how good she was at bringing us up. I hope she listened!