The right kind of music goes a long way! Sometimes after hearing ingame tracks for an extended period of time it can become dull. Try listening to your own music on shuffle or new music at that! Spotify is godly for this.

If you're doing something easy and repetitive like Fate grinding and don't need to pay 100% attention, the right Netflix show can also be helpful to taking your mind off the monotony. Also, don't underestimate the power of voice-chat with your FC or LS! Having like-minded friends to spurt out a little nonsense or a joke every once in awhile or discuss the game proper might also be a great way to pass the time during late night grinding this holiday season.

Find ways to make it fun and the leveling should pass by rather quickly