Nocturnal anxiety attacks and no appetite.

Hi everyone I am at 0.9mg of Valium (diazepam) and I started to take this medication almost 11 years ago because I struggled with no sleep for 15 days due to nocturnal anxiety and panic attacks. Now that I am almost off I am experiencing the same thing! I do take 100mg of trazadone and 390 mg of seroquel (tapering) and it knocks me out but the past week it’s been bad! I fall asleep for an hour or some hours and wake up with an anxiety attack in my sleep. I had to take 100-200mg extra of seroquel to try to go back to sleep and I do but even then wake up feeling extra sleepy because I am not sleeping so great and random hours.

I know this community is about “healing” but I don’t have that type of time since I am in my 30s. I got prescribed mirtazapine at 7.5mg and gabapentin at 300mg , which one will help best? I also have no appetite which is why I think it’s adding to the no sleep! My lips started get really dry. I do force myself to eat every 3-4 hours but maybe my body wants more.