I totally empathise OP .
My sleep is crap also, has been for years and I'm 51 now.
I take 25 mg Amitriptyline every night at 8.30pm for a 10.30pm sleep.
It works for me ( for now!).
I tried mirtazapine a couple of times: never again! Couldn't wake up, constipated,, just meh!
Before Amitriptyline, I had tried sleep gummies, cbd oil, lavender baths, chamomile tea, essential oil sprays. Basically you made name it, I've tried it, but to no avail.
Menopause really stressed me out over the years. I've needed HRT, but due to a breast cancer diagnosis a long time ago, accessing treatment has been tough ( even via a specialist) At one point, I could barely drive from anxiety and unbalanced hormones. Then I just started to worry about EVERYTHING. Money, the teens. the house, being far away from my parents, the garden.
literally everything.
What am I trying to say here? Well after my last appointment with my specialist in October, a few things etched in my mind. She said that women in particular, spend a lot of time in life, juggling many different balls and at some point the juggling doesn't work so well, balls are dropped, which impacts on sleep as we start to worry and our minds go into overdrive at night. Then we need intervention, which can come in many forms I guess.
Some women need Oestrogen and their insomnia is cured within a certain time. Some need sleeping tablets, others need a break from their jobs and responsibilities. It's a time to completely reflect on your life.
Maybe you need to reflect OP? You are on a huge whack of Oestrogen, but that's not helped your sleep. This means, low Oestrogen isn't causing your insomnia, UNLESS you are not absorbing?
Maybe getting back to the office will help?
Why were you upped to 150 within 3 weeks?
The general rule do thumb is. start low and slow with HRT.
You wouldn't usually start on a 100 patch, more a 25/50 for a least 3 months.
I hope things improve soon.
Have you had thyroid checked recently?