been there done that.

Personally I think that anything that you DO (think active verb) is a good thing.

Do NOT sit around
Do NOT sulk
Do NOT predict negative things yet to occur
Do NOT use drugs or alcohol
Do NOT isolate yourself

DO go for a walk. DO go look at newborn babies or pets. DO call a friend or family member. DO go out to a comedy show or watch a very funny show WITH someone.

Just my 2 cents. Best of luck.