I would look into happy , mood lifting supplements, or medicinal marihuana, whatever you can use, after consultation with your doctor. And I will wear all the time , some scarves dipped in cold water, or even keep some in freezer and rotate them. I would use soft towel ones for gym, and some beautiful for going out or work.
Cotton, cashmere, in zip lock bag and freeze them, not damp, just dry scarves and keep changing them.
You can keep some in work fridge or freezer, or in the car in freeze bag or picnic box with ice? Just suggesting, what I would try.
I'm sure you've tried lots of things, and yes, it's annoying, especially we're not that old, as to say, getting old suck, but it really does.
I've got my diagnosis at 54 years of age, but it started earlier.