bad days blown out of proportion is depression

Sometimes, other people's bad days make my good days bad days. And when sulk for caring about their bad days it makes their days worse days. So I try to keep positive, and pull them out of their bad days, but the only escape from a bad day is to believe it really isn't that bad... you got in a car accident... that's bad, but you weren't hurt, and you aren't gonna go broke. You lost at a video game... that's not even that bad... especially when you are playing someone who is at a whole other level than you are at that video game. That's like trying to fight a level 45 pokemon with a level 5... it won't end well for you, but at least you gained some experience. But it's nothing to frown over, just walk away and try again later.