Confession time: I am a pessimist. I think that everything will go wrong, or has gone wrong, or is currently going wrong. I am positive that I will never win. I am positive that everything is terrible.
Because of this, it is sometimes interesting to jump into the mind of an optimistic character. To try and see the hope in the situation instead of the inevitable doom. So I go a little stream-of-conscious in the mind of the character. What could be happening now? I could be winning. Something amazing could be happening. I could be on my way to winning the lottery! To meeting the one! To getting a promotion.
Now, this might be the other way around for you--you might be an optimist, so the change would be writing a pessimistic character. But try to go into the mind of a character who is completely different from you, and see the world in a different light.