@isthiswalter you get oestrogen gel on the NHS from your GP.
@Daphnesmate01 It's good that you have some talking therapy lined up but Covid doesn't help, does it?
Being honest, you sound as if you want 'guarantees' , or have some negative mind blocks, before trying anything and it doesn't work like that.
For instance, we've all heard of bad experiences with the Mirena, but there are 1000s women happy with it - they just don't come to forums! You might get on great with it- who knows?
Hormone tests aren't reliable. That's why they aren't done. Hormones change daily. I've used HRT for 12 years and never had a hormone test except at the very first appt which was for something else (not hrt.) and that gave a wrong result- said I was post meno when I wasn't!
My consultant says they are a waste of time.
There is no such thing as too much adrenaline- this is a kind of myth that people talk about. Obviously, you are an anxious person and your fight-flight response kicks in fast. Trick is to get to the bottom of why you react that way- what's going on in your head to kick off that reaction. You can do CBT online- lots of free or almost-free courses that might help.
You didn't say what kind of hrt you were on, or what dose, but certainly with gel it's easy to use a low dose and build up.
Medical advice is to give any hrt 3 months trial before stopping.
And there is no time limit on it. You can use it forever.
Hope you find a way forward, but you've got to be willing to try stuff and have a positive attitude rather than believing there will be problems. Good luck!