Yeah, mom was also a teen when she got pregnant, my bio dad isn't even listed on my birth certificate. She had a string of incredibly bad boyfriends and another baby before settling down with my stepdad, falling into the incredibly cult-y church he was in, and having one more baby. My youngest brother was always the favorite, because he's the only "legitimate" child out of us, and I was the oldest and only girl so a lot of parenting fell on me even when I was still in elementary school.
I think I got lucky with having my great-grandmother help raise me before the cult. Quite a lot of my personality mirrors hers, but she was a teen during the Great Depression, so I inherited some weirdly relevant worldviews there. These were further reinforced with living in a state that didn't believe in social safety nets like adequate food assistance, so I got roped into helping mom with finding edible food in the grocery store garbage, because I was small enough to fit into the dumpsters.
I don't know if it's PTSD, AvPD, or what, but I do have a hard time connecting with people who haven't been through similar trauma before. I find that too many people are insulated in a comfortable bubble and don't want to believe these things can happen, so I always feel like everybody thinks I'm a liar, and I just get so angry and stop talking to them.
I've been with my partner for the past 16 years tho, because they've got similar trauma and they understand.