Start a game journal. Don’t just try to describe the features of the game, but dig deeply into the choices you made, what you thought and felt about those choices, and the underlying game mechanics...

Start a game journal. Don’t just try to describe the features of the game, but dig deeply into the choices you made, what you thought and felt about those choices, and the underlying game mechanics that supports those choices. Go into detail; look for the reasons
why
various mechanics of the game exist. Analyze why one moment of game play stands out and not another. Commit to writing in your game journal every day.