Hi Messer and a very big welcome to our forum!
What's a male doing replying to your post about menopause issues? Well my wife went through exactly the same problems as you for well over a year. With 'The change', she was questioning her personal worth, not very respectful to our relationship or family, and it got pretty awful from time to time.
It was time to reinforce the love and respect I had for her, show as much empathy as I could, and read as much as I could about menopause and what a partner can do to help. Yes, it was not easy!
Please take your relationship counselling seriously as you don't want to muck things up over what will most probably be a relatively short period in your life. Menopause blues affect most women from what I can learn, and there is great online information and advice.
Life has much to offer. Try to calm your mind by focussing on your daily routine. Social interaction with friends will help of course, with friends that make you laugh, even though you may feel like hiding away. Try and discuss it with your partner and make it clear how much you value that person's support. This one is hard as it may well be too easy for you to lose self respect at this time, when what you want is helpful understanding..
My own relationship recovered very powerfully thank God, and we sometimes reminisce about the strain it placed on us at the time.
New exercises, things and challenges may help as well. What have you always wanted to do but never got around to?
Again, thank you for taking the courage to reach out. I am happy to chat at any time and do hope that some of the above may help just a little bit.
All the best, The Bro