I used to gather my strength at the year’s end for a running start into the new one. I’d limp through Christmas, the demands and social gatherings jabbing tender places. I’m no stranger to the ache and weariness the holiday season can bring. The twinge in your gut, that hollow space when everyone else seemed to be Christmas-ing better. Houses decked out with twinkling white lights arranged and tidy, fresh garland draping a stocking adorned fireplace, and each smiling child with flour …