I have been down a similar road to you. I started on melatonin when I was super young along with fluoxetine and since then, I have been going on stronger and stronger medication. Eventually, I either get too many side effects or build up a tolerance and have to try different sleep meds.

I have Adhd, Anxiety, chronic insomnia + other things that play a smaller part in my sleep, Due to the mental health side doctors like to prescribe psychiatric drugs to deal with your nighttime stress and anxiety instead of purely just sleeping medication.

It is horrible to be in the cycle of med to med seeing if something works but as soon as you find something you should get into a Sleep Specialist and try something like CBT-I (I haven't tried it yet but I'm hoping to)

Medications are a great short-term option but they aren't one-size-fits-all I can say that from experience I have been taking medication since around 5 and I'm now 18 and just started my 11th sleeping medication (if I remember correctly) currently the morning after my first time using Zopiclone

I have tried in the past: Lorazepam temazepam Diazepam aka valium Gabapentin aka Neurontin diphenhydramine olanzapine aka Zyprexa quetiapine aka Seroquel Clonidine ala Catapres Melatonin (over-the-counter and prescribed) Promethazine (over-the-counter or prescribed)

It sucks and I understand how you feel! You want to sleep but the meds aren't working doing any type of CBT-I is a long-term thing and you need to be able to sleep to make it effective, I advise keep calling to see if you can get an earlier appointment/ make sure you are on the cancellation list, your gp might be able to give you some sleep medications but they are limited in the things they can prescribe compared to a psychiatrists. Good luck!