Sorry to hear this, having to wait is horrible and it's easy to get into a spiral of anxiety which then causes chest pains and raises your BP. (Ask me how I know! I never thought I'd suffer from panic attacks, but, like you, ended up having them, convincing myself I had cardiac heart disease). I don't - after a load of tests, it turns out I have a benign arrhythmia which gets worse if I'm stressed.
I did manage to speed up the wait by paying for some of the tests privately then seeing the cardiologist privately too. He's the same person I would have seen via the NHS. Is that an option for you? The cardiology department were very helpful in telling me how long the wait was for the different tests
Firstly, you're doing all the right things to help yourself, especially taking steps to manage stress. Are you able to cut down on the wine too?
I also signed up for emails from this nutritionist - she gives excellent advice for women from mid-life on:
https://www.cardiffnutritionist.co.uk/
And, have a good look at the Heart UK website - they also have an email service which you can contact for general advice - that might put your mind at rest. Stay away from Google!
Finally, when you have the diagnosis (and hopefully, the all-clear, or if not, a treatment plan) from cardiology, you may want to find a GP who's trained in peri- and menopause if you can and have a chat. Falling oestrogen levels is a major reason for anxiety and less emotional resilience.
Good luck, the chances are that you will have a very good outcome - be kind to yourself and try not to let your family put too many burdens on you.