5 nights zero sleep & 4 sleep meds

Ugh it’s been 5 nights and I’ve had zero sleep, not even nodding off and no daytime naps. I take 4 meds: gabapentine, prazosin, Ativan, and mirtazipine. And, no sleep. At all. It’s been months. I average 4-6 days no sleep then just crash for like 12 hours then no sleep again for 4-6 days. Im feeling like im going crazy without sleep and can’t function during the day. Im trying CBTI next week. This can’t be good for me. Any advice is appreciated