On a lot of medication for my insomnia. I've had a progressively dying sleep drive for the past 6 years. I don't yawn anymore and never feel sleepy.

I'm on 30mg olanzapine, 4mg risperidone, 20mg zolpidem and 10mg nitrazepam. I overdose to 15mg on the nitrazepam otherwise i don't fall asleep. On this cocktail I get 3 very broken hours of sleep. My sleep drive has been progressively dying over the past 6 years. No neurologists take me seriously and I have been diagnosed with having an anxiety disorder. Am I fucked? Is there any hope to end this nightmare?