Hi Dottie,
thanks for your extensive advice! I'll read it again carefully later and definitely put it to practice
What I did in the past to adapt to the cold weather was taking cold showers, it helps, but sitting for a long time still makes me cold. Anyhow I feel that I shouldn't take cold showers right now as I just recovered from a rather serious cold, which was one of the reasons why I thought it was time to change something and go on to the rice fast.
Kind regards
-Hans