Vitamins for relaxation and insomnia

I’m on gabapentin, and have been for a long time. I experience little negative side effects and it actually boosts my energy by giving me clarity of mind (only a little , not much cuts thru this brain fog). I still struggle to sleep without smoking weed, but I notice when I do smoke weed I have panic attacks more often. I really need to find some supplements to help with this, I’m very tolerant to the gabapentin and so I’m not as concerned with it interacting with any supplements, but anything I do try would be in small small doses at first to be sure I’m okay.

Does anyone have and recommendations for this? Any suggestions I want to try would be discussed with my psychiatrist, as she is the one managing most my meds. I’m sick of feeling tethered to weed. Having panic attacks gives me PEM and so I can’t take the risk anymore. I’m so chronically tense, like every muscle is contracting at all times. I can’t ever seem to sleep, once I developed CFS my narcolepsy naps became fewer and I mostly just experience the intense sleepiness and cataplexy instead of naps now. It’s like I’m wired but locked in this foggy exhausted sack of bones.

This has also become a vent, apologies. When I can’t sleep I become mentally unwell to the point that I begin to hurt myself. It feels like a way to control the pain I’m in. I don’t want to risk this. Benzodiazepines make me depressed. Ambien did literally nothing, I was totally coherent, walking and talking like I took nothing. If anything I felt even more awake. I’m sick of this. I’m so fucking tired. I dread the night. I dread this.