Dear god this sounds terrifying.   I am lucky to have only been introduced to the more benevolent rooms of hyperspace.  I have read many dark trip reports and can imagine the terror. 

I can relate to the night terrors.  I have experienced sleep paralysis all my life.  It's been especially bad the past view months.  A shapeshiftimg demon comes to me in the form of people I know irl, it creeps up to my bed and tries to scare me.   It fills me with sheer dread.

I struggle and try to break free,to no avail.   Curiously enough, when I command it ''in the name of Jesus Christ to be gone'' in my head, it always does. 

It seems silly but it never fails me.  Try it sometime.

You might need powerful healing after such a deep experience.  Ask your higher power for a blessing. I will pray for you the best way I know how.

Never fear namccor (EZer said than done, I know.  There is nothing to be afraid of)