Yes moisturiser is very good, I use it alongside Vagifem and Estriol cream, they work well together. I never felt dry with VA but I obviously was as my condition became chronic.
If you are over 50 you can buy estriol cream from Boots under the name Ovesse, topical oestrogen is very safe to use and doesn't come with all the baggage you get with systemic oestrogen which can be a minefield.
Hopefully after your appointment is out of the way you can get down to treating your GSM symptoms with appropriate doses of oestrogen. Make use of the search box here, it's very informative.