In real life, pretty much everybody reacts to tragedy differently. So why is it that every author has their pet reaction to tragedy that all their characters use? Not only is it unrealistic, but it takes away the chance for the charactersā different reactions to reveal things about themselves.
Possible reactions to tragedy (not an exhaustive list):
Distracting oneself with mindless activities
Distracting oneself with othersā humor
Distracting oneself by making jokes
Distracting oneself by reading/watching/playing stories
Distracting oneself with hard mental work
Distracting oneself with hard physical work
Distracting oneself with creative endeavors
Distracting oneself by chatting with friends about normal things
Talking to friends about the tragedy
Talking to authority figures about the tragedy
Talking anonymously with strangers about the tragedy (if possible)
Getting wrapped up in othersā problems
Doing everything possible not to cry
Going for revenge against whoever one can blame
Lashing out against friends and family members
Trying to prevent a similar tragedy from happening
Taking mind-altering substances
Getting in unhealthy relationships
Numbness combined with apathy
Numbness combined with going through oneās normal motions
Trying to get things back the way they were
No reaction at first but a reaction hits later in greater force
No reaction at all. Emotions relating to the tragedy just fail to load. Note that this can happen to anybody and does not mark a character as a sociopath.
Characters can have more than one reaction at the same time, one reaction after another, or different reactions to different tragedies.