I literally have PTSD from a decade of struggling in extreme poverty and can't sleep most nights, I can't look forward to anything and can't enjoy anything because everything feels like it can be lost or taken away at any moment, and instead of enjoying good moments, I can only fixate on things that can go wrong and things that could help me if I lose everything. Again.
I've been in and out of therapy for this and for other issues, and have gotten a lot better but this is permanent scarring, if you've been harmed by society, that harm lasts as strong and as real as actual physical wounds.