I recently came across a short video on Vimeo portraying love and hate towards job and generally the things we do in life. Love when all things we do work out right the things we expect them to be and hate when everything just gets messed up.
After all, it's all really up to you, it's how you make out of it. If you want to live a happy life, think positive; if you want to perish and live a life of regret, be pessimistic.
Here's the video: