You can't sit back and do nothing. You have to fight back. It doesn't matter that the psycho rapist isn't actually there. You have to fight back.
Is it a struggle to try and wake up and not dissociate? It's not the same as knowing your awake and still dealing with last night's dream. You have to focus really hard and fight to not feel almost trapped in a nightmare. What helps? I try to drink something right away so your system has something tangible to deal with. Then, it's fight all day long to not black out.
At the end of the day, you're so tired you can literally barely walk. But what else can you do? If you do nothing, you fall apart. You can't do that.
Fight for a sense of balance.