Denrog, you don’t seem to have given any information about what your husband’s cancer staging was, but the fact he’s had an RP indicates that the cancer was presumably localised, and that treatment’s been given with curative intent. Of course a cancer diagnosis is concerning, but there really no reason not to feel positive about the future. Localised prostate cancer is almost always a “little c”, not a big one. The overwhelming majority of men diagnosed with it don’t die from it.
Stop worrying about it and enjoy Christmas!
Best wishes,
Chris