Our favorite attitude should be gratitude.
Success doesn't make you and failure doesn't break you.
A lot of people quit looking for work as soon as they find a job.
If you want to reach a goal, you must 'see the reaching' in your own mind before you actually arrive at your goal.
Be grateful for what you have and stop complaining - it bores everybody else, does you no good and doesn't solve any problems!
You will never find a truly happy self-centered person. They simply don't exist.