Put Something Behind One Meaning

(idiomatic, transitive) To recover from an unpleasant or traumatic experience; to overcome a negative feeling, especially anger, resentment, or grief.

Example:   The losing candidate was just glad to put it behind him after months on the campaign trail.
2011 September 21, Sam Lyon, “Man City 2 - 0 Birmingham”[1], BBC Sport:
  Owen Hargreaves put his injury problems behind him with a fabulous goal on his debut as Manchester City beat holders Birmingham City to reach the fourth round of the Carling Cup.