Sending you a big hug
Your GP is talking absolutely nonsense about testosterone. I have used it every day since last June, and I don't have hairy knuckles yet! Actually, I haven't noticed any physical difference whatsoever, and I get through a tube every week.
Oestrogen of only 90 p/mol is very low, especially considering your age. No wonder you feel so flat.
I am so tired and angry at GPs who just make sweeping statements about drugs/treatments that they actually know little about. If I were a GP, and heard that some of the top consultant gynaecologists in the country regularly prescribed testosterone for menopausal women I'd think 'Hmmmm, well there must be some benefit in it, surely?'