My dad is still a violent raging undiagnosed nutter and my mum is still with him. I thought for many years that because there was no sexual abuse, then it was all 'normal' - normal to bully, threaten, and beat up your wife and children.
It has affected myself and my siblings quite badly. All of us have very little self-worth and find it hard to get a job which actually pays anyhing. One brother beats up his wife and they have massive family fights with all the children involved. I spent the first 30 years of my life trying to get rid of myself one way or another. My other sibling prefers to keep relationships at arm's length for fear of being like my dad.
Some parents are just horrible, and their affects can be devastating. It has taken a long time for me to start to come to terms with my father's insanity, to realise that it really is NOTHING to do with me or anything I have done, that my life is not actually his life. A lot of people don't understand just how worthless I have felt, and still a they say, why don't you? Have you done this? Why don't you try...? You could do... If I had what you have, I'd be over the moon...
Sadly it's not that easy.
Womens Aid have been fantastic, and there is a good link for adults abused in childhood. NSPCC have a lot of information about what constitutes abuse. Also the Duluth wheel can help clarify things I've found.
Sorry to sound like a ranting angry woman. Perhaps this is just what I am.