By being a horrid mother, she taught me resiliency and strength. Somehow, without love from any of my family, I kept on. I have no idea why. I suppose I was born with a strong soul, but through my childhood, I became stronger and more resilient.
She also taught me creativity and imagination, because to escape the reality of my childhood, I went inward. I created a world in which I was an adult and actually had choices and love. My fantasies and daydreams were always based on reality, so they were/are quite believable. No flights of fancy here...except maybe in my crafting. :)
I was also taught independence. I couldn't count on anyone; no one had my back, so to speak. So I pretty much go it alone. Oh, I'd love to work on a project or goal with a group of people, but for some reason, I end up doing it all myself. Not sure why. Maybe I choose busy or lazy people, so I create a self fulfilling prophecy of always feeling alone? Not sure.
She taught me how not to be a mother! I did go through some therapy so I wouldn't pass on a bunch of baggage to my son. I'm not a perfect mother, but I have to admit - finally - that I did a good job. I also distinctly remember the day in therapy, when my son was playing on the floor, and the therapist asked him a question. I can't even remember what the question was now, but I remember crying as soon as he said his answer because it was a very significant answer. (He was around eight years old at the time). The therapist looked up at me and smiled. She said, simply: "You've broken the cycle."
I also learned to be very nurturing - but not through my mother's example. I had to mother myself, and sometimes I had to be her mother when she'd have yet another pity party or ranting and raving, saying how I should've never been born and how much trouble it is to be a single mom.
Those are positive things my mother taught me. There are, of course, negative ones. I tend to be a loner because I've had to be. I tend to not want to be a bother to people, so it's easy for me to jump to conclusions since I had to always be hyper aware of my environment and try to be as invisible as possible.
I learned how horrible words can hurt and how just as horribly emotional abandonment can hurt as well.
While she was a horrible person - and still is - I'm glad she was my mother because I became a stronger person for it.