Cwtch, I have no experience so cannot advise you on the hrt.
But what I can say is, since I have been reading this forum I am sure you have nothing to feel guilty about, as hormones are NOT an easy thing to live with and make many of our lives a living hell. When I was asked by that idiot GP what was the worst thing without hesitation I said the anxiety, not once did she ask why or what I was going through, and I have not told a soul about what really happens, but from what I have read on here I am sure many of you know all too well.
Sorry I cannot remember were you are or how you get along with the GP, but if you feel you need more help you can ask for a referral to the well woman clinic, or of course change the GP. Sorry I you have already done this.
I feel quite neurotic most of the time too, I have also never been forced to give myself so much thought in all my life, and cant say I like it so much.