I suppose it depends what you mean by "get over".
I think there is definitely a cultural expectation that we should, and that if we don't we are "playing the victim", but in my view that's total bullshit.
I'm functional, and I'm good at pretending to be doing great, but I'm not over it and it is still wreaking destruction on my life. Despite my continuing best efforts.
It's different for everyone.
Based in my own experiences, I think it's easier to think you're "over it" or to appear like you're "over it" until something else difficult or traumatic happens, or if you find yourself having to deal with medical treatment. Then you rapidly discover you're a long fucking way from being okay, and next to nobody in the healthcare sector understands trauma and that just because you get through their painful, invasive, traumatic, distressing procedure and go home quietly does not fucking mean you won't be left broken in pieces for months afterwards. And telling your patients "you just have to deal with it" is not fucking okay.
Hm, I might be a bit angry.
Life tends to be permanently significantly different after a major physical trauma. It pisses me off that we are treated as weak or pathetic for facing the same consequences from major psychological trauma. The only people that narrative helps are the ones assaulting us.