Logically you can not do anything to help the situation if you...

Logically you can not do anything to help the situation if you are not around anymore and it just makes it harder for others ,
Maybe discuss your issues with a help line or a GP or understanding family member or friend , at your first available opportunity and in the mean time not look at any media that gets you feeling negative
I get depressed sometimes to , and find exercise followed by a scone at a cafe helps to not feed the wrong wolf with sad thoughts .
As the cherokee say "which wolf will you feed? "