Yeah, probably about the same amount as most people on here. I was in a situation in the earlier years of my life where there was some emotional abuse but due to a crazy amount of circumstances it wasn't anyone's actual fault. Which I know sounds ridiculous for those who haven't been in that sort of situation, but things like that are much more morally ambiguous then people want to let on.
There was also just a solid two-three years where I was manipulated by my peers for fun because due to my early childhood there was some social development issues. While I can't say I'm completely better I'm much more socially in tune then I was six years ago, so that's something.
I also had to acquaint myself with loss at a young age, and during my darker years where I was manipulated I had the death of three grandparents, an uncle and my father. So yeah, that was also pretty hard. The fact I didn't kill myself was a blessing within itself, because that's where I was at for a while.
Honestly, I think the biggest thing it shaped is how monstrous, realistically manipulative, spiteful and lost in their own thoughts my characters can be. Not a specific idea or theme, unlike most writers. I just want to express these things in my story because for the longest time those are the only things I ever knew.