DURHAM, N.C. — For 41 previous seasons, Mike Krzyzewski has counseled Duke basketball players on how to handle the swirling emotions of their Senior Day. The commingling of pride, joy, sadness and nostalgia can be a lot to process before the last time they take the court in Cameron Indoor Stadium and bathe in the adoration of the home fans. Saturday, it’s finally Coach K’s Senior Day. It’s time for him to coach himself on how to say goodbye to college Camelot. At the final pre-North Carolina press conference of his incredible career Thursday, Krzyzewski walked himself through it, thinking out loud. He acknowledged that the reality started to hit…