Hi Mamie
While there is no longer an age/time limit for taking HRT that a woman has been taking, a study in relation to cardi-vascular health recommended that there is a "window of opportunity" when the maximum benefit and least harm is done healthwise, for starting HRT - and this is under 60 or within 10 years ( maximum) of menopause. This is because of changes in the arteries such that there is an increased stroke risk if starting oral HRT long after menopause (in a nutshell and as far as I recall).
Here is a link to the British Menopause Society recommendations:
https://thebms.org.uk/publications/consensus-statements/hormone-replacement-therapy/... and the key recommendations relating to age:
"Arbitrary limits should not be placed on the duration of use of HRT; if symptoms persist, the benefits usually outweigh the risks.
HRT prescribed before the age of 60 or within 10 years of the menopause has a favourable benefit /risk profile and is likely to be associated with a reduction in coronary heart disease and cardiovascular mortality.
If HRT is used in women over 60 years of age, low doses should be started, preferably with a transdermal estradiol preparation." - as Avalon has already said, you would need to start low dose and with transdermal HRT but if you still have a uterus you would need a progeastogen and as you found earliet this was problematic. I am mid 60's and still take hRT cyclically so have to endure a very unwelcome bleed because I take it long cycle to minimise the progesterone.
Although a 25 mcg patch is lower than the minimum dose for osteoporosis protection it still reduces bone turnover as I recall so will help to some extent.
You should be able to get a referral to an NHS menopause clinic depending where you are in UK, without having to pay - and because of all the lockdowns most clinics are online anyway so you would be able to find someone cheaper than the Studd clinic if you feel you want and can afford to go privately because the wait is too long for NHS, and due to your age, time is of the essence!
You can find the specialists listed here (also linked from this website):
https://thebms.org.uk/find-a-menopause-specialist/Hope this helps and good luck!
Hurdity x