The title says it all. There will be days where things just go wrong. You will miss the person you lost and other bad things will happen. Have a few drinks and do something you enjoy and do your best to just forget. Maybe it's not the way the experts say to do things but every once in a while it's ok to do.

Since my wife passed away I have only gotten drunk twice and had a drink three or four times total. Today was a get drunk and play some games day.

Update:
I still believe this is true. Please don't overdo it and it's best to have friends or family around but having a way for your mind to let go of a little bit of the grief for a time does help.