Disco Elysium helped me understand addiction from an addicts point of view. Had personal experience with addiction from the loved ones perspective, could not get beyond my own feelings.
Specifically the phone call scene. It is so depressingly desperate in a realistic way. It could not have been written unless someone knew firsthand how those calls go.
It helped me look beyond myself and think of the daily hell that is a recovering addicts life. Directly helped me with my grief.