About the issue where your game is showing as having deleted DLC's or lost game totally. Go to your Steam app. Go to Steam < Settings < Downloads < Clear Download Cache. This should restart Steam and you should have access to your game & DLCs.
What do you snack on when playing DbD?
If I had a long and bad day, I usually stop and get a slice of Chantilly Cake from Whole Foods to end the day on a good note.
Otherwise, I don’t normally snack since I just have dinner while playing. Tonight will be Turkish Lamb Kabobs and rice.