Try to look on the bright side of things

In this fast food worl,there are so many change we have to face every day.some of them is good,but others is bad.my theory is "just having fun".we you're feeling bad,try to ask youself,"is it really THAT tough",I think most of time the answer is "NO".Well,we just need "try to look on the bright side of things",this is my philosophy,do you agree with me?