Hi Furyan -
Yes, I'm better than where I have been - but I'm by no means perfect. At the moment I'm going through a bout of going backwards slightly and finding it difficult to fall asleep - I tend to be in a light patchy sleep for several hours, then I wake fully around 2am because I've had enough of it - and I take double doses of melatonin, l-theanine and apigenin. That usually does it and I can sleep okay, although I don't really feel rested in the mornings.
Like you, I think this can be cortisol related. The inner tremors and buzzing in my feet are the main reason I can't quite relax and sleep and I just startle and feel I'm on high alert. I also take Seriphos, zinc and ashwaganda as well as magnesium. I take that lot around 8pm. I've tried Relora in the past as well. I've done saliva cortisol tests and they come back high at night, when I'm supposed to be going to sleep... I do think this is some kind of panic state I get into due to my body or brain thinking my E is low. BUT - WHY DOES IT DO THIS?!!? Considering I've been on desogestrel POP for 10 years before starting HRT to manage my endo - and my E would have been lower on that. (I never bled for almost those 10 years.)
Since all this got much better for a while and has come back a bit, I'm wondering if my E has dropped again. I tested on 200mcg patches and 6 pumps of gel and it was around 890pmol (that was when I felt good) but then I tested again a month or so later and it was 650pmol - which is when things started to backslide a bit. Why I dropped that much, I'm not sure.
It doesn't help that with the Estradot shortage, my dose has had to be made up of loads of 25 patches. And they all get a grimy ring around them, so I reckon I absorb less from 4x 25 patches than from one x 100 patch, for eg. Because there's just one grimy ring around the 100 and there's one around every 25 patch! I tried to compensate for this by increasing my dose. I'm supposed to be on 200mcg patches plus 6 pumps of gel but I've increased the patches up to 300mcg. (I always put my order in about 1 week early so have accumulated excess 25 patches now!) I can't increase the gel because I don't absorb more than 6 pumps. Which is a shame as I seem to have about 15 extra bottles of it now

Anyway, it doesn't seem to have helped.
I am doing another home Tasso test this coming Wednesday so will see what my E levels are. I really wish we had access to injections in this country as this is just ridiculous now, trying to get enough E into me. I don't really want to use oral due to increased clot risks and also it increases estrone (inflammatory estrogen) and transdermal doesn't - plus if you ever have surgery you have to stop oral, and can continue transdermal.
Yes, I think increasing your HRT to get to 800-1000 is a good thing to trial. I have no probs with taking P, whatever route. The main reason I take it vaginally is because the UK blood tests can't accurately test levels if you take it orally due to the metabolites. And I want to be sure I'm getting high enough for endometrial protection, on this kind of E dose. Have you tried taking it vaginally? It might not cause the same painful boob issues that way....