Insomnia, Ambien, and Endarkenment

I've had severe insomnia for months--when I say severe I mean staying up enough nights in a row to start having mild hallucinations.  I don't function well on little sleep, and have always needed a good 8 hours at night and a nap in the early afternoon.  A few months ago I started taking Ambien every night under my doctor's supervision, along with an over-the-counter antihistamine meant to be used as a sleep aid (neither product did the trick on its own). 

Things went fine for a while (I do love that Ambien!), but lately I've noticed that even in the day, my personality has changed.  I've lost my spark, and also my ambition for my spiritual path. I'm getting cut off from my Inner Light, I can feel that. I'm at a place where I have to go off these meds -- which I plan to do gradually. 

I'm afraid to look that abyss of insomnia in the face again, but I'm also afraid of losing my soul. 
Going off meds can be like jumping off a cliff.  I'm trying to get psyched for the jump. 

Wheeeeee!