Love this list: 7 Habits of People With Remarkable Mental Toughness:
1. Always act as if you are in total control.
2. Put aside things you have no ability to impact.
3. See the past as valuable training and nothing more.
4. Celebrate the success of others.
5. Never allow yourself to whine. (Or complain. Or criticize.)
6. Focus only on impressing yourself.
7. Count your blessings.