Bad Days and He Said/She Said

We all have Bad Days. The days can affect us emotionally, financially, medically, or physically. We can get one bad news after another in one day. You just feel sometimes, like, nothing is going right. How do we handle Bad Days? 

We can waste so much time and energy on He Said/She Said conversations.  Each person tries to recall what occurred 10 minutes ago, one day ago, one week ago etc. Forget it! Do you agree to disagree? Or do you just argue for hours or days? How do you handle these conversations?