I'm sorry to hear this Conquer, I too have nightmares of my childhood on a nightly basis, often just as you describe with panicand extreme mood disruption in the morning, and I completely relate to how draining, distressing and lonely this endless cycle can be. I too began to experience the nightmares as almost the first consistent symptom of my PTSD, and more than 3 years later, they are still here.
The danger is that the longer the pattern continues, the more it does lead to trying to limit and minimise sleep, and to all sorts of related sleep and nighttime negative behaviours and routines as a result.
Medication helps many people, and it's worth the frustration of persevering until you find something that works if you can.
There are also a whole range of grounding strategies that can help to manage the distress upon waking, and many other sleep hygiene-related routines you can try to implement to increase your sense of safety and calm as you try to fall asleep - not sure what you've tried in the past?
I do so understand the suffering and distress though, not to mention the impact that this has on your ability to function with such sleep deprivation.
Lots and lots of empathy coming your way Conquer.
Maddog