It would be so much easier if GP practices (or if there were specialist meno clinics in practices or specialist nurses) provided regular hormone testing on a regular basis. Therefore if you were having problems you could go and get your bloods done twice a week for 8 weeks which would give a least a bit of picture of what the body was doing on an individual basis.
I have never ever had any blood tests done since starting hrt at 45 and I am now 57. I was on the "wrong hrt for 8 years which hardly did anything to help me but I didn't know that at the time and then it took 3 years of swapping and changing to get the right hrt and then 7 months for that to "settle" and start working as it should (or as good as it's gonna get). I have now been on the "right hrt" for 14 months.
I too had anxiety so bad I was certifiable, aches and pains so bad I was diagnosed with fibromyalgia (but it isn't, its hormonal), insomnia that I could go 48 hours without sleeping, left sided migraines in my face amongst a whole host of other things. They have nearly all gone or have dialled down from a plus 10 to about a 2 on scale. I am better than I have been in 20 years (turns out the hormonal problems were there before meno which was why it was so bad). But through all this not one blood test or any real help at all. I had to sort it out for myself.