lastminuterush I am so sorry.
I'm just at the end of page two and reading all your posts and trying to read others' posts too.
For what it is worth, I think your childhood was abusive and you are trying to make sense of it in your own head. You don't want to come from an abusive home so you use words like " many ways my parents were good; very loving and generous and supportive."
Yet you go on to describe parents who were not particularly loving, not generous with food or clothes or money for food or clothes and not supportive in that they either were unaware of the bad bullying. You even feel your parents made it worse. " It contributed in part to such bad bullying as I always had awful stuff."
Did you tell them you were being bullied and they did not help, or tried and failed, or did you not tell them because you felt they would not help. Did you expect to know and feel let down by the fact they did not?
Your desire to avoid counselling is a shame as that is one area where you could relatively explore this and may find resolution to the issues.
"They made it difficult for us to have and to keep friends. Didn't like us socialising outside the home at all really.
Sometimes I think - was it done on purpose?"
Why do you think they sent you to Sunday school (twice a Sunday!) if they were not believers and why do you think they isolated you on purpose?
"I can't imagine yelling in a tiny child's face and punching the table in rage because they got their sums wrong ... just seems it was always volatile, looking back, someone was always about to explode." That is abusive, so you don't need to brush it under the carpet because that doesn't tend to work well with hurts from the past.
lastminuterush I think counselling could help. I know you object "Because the people I know who went into counselling are very troubled individuals. I'm not sure it has any scientific basis. It seems to me it's based on talking, which I can do, but it's an expensive talk."
People who access counselling do have issues and problems. Talking may help unlock what you have locked away. It is hard and troubling but it allow you to know deep down, that the things that happened to you are not your fault. Brushing dirt under the carpet doesn't make it go away and eventually you trip over the massive bump in the carpet.