It's all about you and your DS.
You sound incredibly like my mother. She also attacked me at 17. My sister and I spent our entire childhood in the shadow of our brother who was the youngest and the golden child.
I listend for years to the stories of how I was an awful baby who cried non-stop and was unlovable and how my sister gave her PND. We were always told how we were awful children, didn't behave or rubbed her up the wrong way.
She often slapped us or dragged us by the hair when we didn't immediately do as she told us, she frequently lost her temper and would scream at us over small insignificant things. Of course she had a mask of perfection in front of friends, teachers and strangers.
At 17 I came home to find her painting our bedroom. When I asked her why she was painting our room in a colour we hadn't asked for and without speaking to us, she flipped and slapped me hard across the face before punching me in the face and laying into me, for the first time in my life I hit her back and you can bet she stopped and didn't hit me again.
But she did tell everyone I hit her first, that I was out of control and an awful teenager. You can bet that I sported my black eye and didn't make any attempt to cover it up and I told anyone who asked what happened. I was a high achieving student, I was never in trouble, I followed the rules. Did I keep my bedroom clean all the time? No but most teens don't, did I do everything right away when asked? No but most teenagers don't either. Did I deserve what my mother did no? My sister acted out, sought out love and affection with the wrong people to compensate for our homelife and she moved out at 16, at which point her whole life changed for the better.
My brother is still the golden boy, I have an almost non-existent relationship with my mother either does my sister (who also suffered violence). I can feel your contempt for your daughters just as I could feel my mothers for us. It's no wonder your daughters don't respect you.
You have time to change and mend bridges but to do that you need to stop being all about you and your precious DS. However I suspect you won't and you'll end up with no relationship with your daughters become adults.