A different one!

“If you always do what you've always done;
you'll always get what you always got.”

- Anonymous

Now Something similar to it ..

"If you want to change your situation, Change your attitude... "

Tony Robbins once said to change your emotional state, change your physical state. To feel excited and happy, you can not lie slumped on chair and vice-versa, you can not feel sad while you are on a roller coaster. .

To change your situation, I think you have to change how you look at it. If you are feeling angry over something, close your eyes, imagine stepping outside your body and then look at what is going on and if situation really is that bad. Someone once said, "perception is projection". A situation is how you perceive it to be.

Mahatma Gandhi says

"Live as if you were to die tomorrow.
Learn as if you were to live forever."