Coach Krzyzewski had some great stories about Kobe’s work ethic; I heard him tell them more than once. Kobe’s life is around basketball - the change is going to hurt.
One big basketball star once told me that after her competitive life was over she felt empty. All her life people had been cheering for her and she continually won. Then, suddenly, nothing. Life in the stands instead of on the court.
He just needs to find another outlet that isn’t so skill based. Do some triathlons, do something crazy like RAAM.