Keep things in perspective. Was today really “the worst day ever!”? Don’t dramatize your situation. People see it on tv and have a natural tendency to mimic it. But really, life is good. Even if you do have a bad day by your standards, forgive yourself, forgive others, and find a way to make tomorrow better.
Chances are, whatever you did/didn’t do today is not a life or death situation. You didn’t ruin someone’s life. Every day and every situation do not need to be turned up to a level 10 on the drama scale. Keep calm and move on.