I feel your pain, OP. I'm wide awake right now and have a business call at 9 am and an in-person meeting later in the day. I tried eating a fairly heavy meal, after restricting calories all week and having insomnia for the past 2 weeks (thinking calorie restriction was the issue) but here I am...awake, again.
I have been an insomniac for years but, I'm 47 now and things are worse than ever before and I just can't seem to catch a break.
I've done sleep hygiene, Snoozeband, reduced caffeine, only drink every other weekend, wear an eyemask and earplugs, keep the room cool, have a fan on, go to bed when tired, get up when not sleeping etc.
Last night had honey and milk. Nothing works.
My gynaecologist suggested melatonin gummies but I found out they are not legal in the UK and who knows if they'd even work.
No suggestions but you do have my sympathy.