Hi and welcome
Do try Vagifem instead of the Ovestin for the vaginal issues. Also try using vaginal Moisturiser e.g. SYLK or the YES products. Lots of lubrucation is needed for sex Durex do a super one called 'Perfect Glide'.
HRT is generally trial and error till you find one that really suits. The peri meno stage is particularly difficult as your own hormones are still having an effect.
You might want to try Femoston 1/10 as the progesterone in this is kinder so often suits women better.
Browse around to get clued up and ask questions - we're here to help. DG x