1. Always act as if you are in total control.

There's a quote often credited to Ignatius: "Pray as if God will take care of all; act as if all is up to you." (Cool quote.)

The same premise applies to luck. Many people feel luck has a lot to do with success or failure. If they succeed, luck favored them, and if they fail, luck was against them.

2. Put aside things you have no ability to impact.

Mental strength is like muscle strength--no one has an unlimited supply. So why waste your power on things you can't control?

3. See the past as valuable training and nothing more.

The past is valuable. Learn from your mistakes. Learn from the mistakes of others.

Then let it go.

4. Celebrate the success of others.

Many people--I guarantee you know at least a few--see success as a zero-sum game: There's only so much to go around. When someone else shines, they think that diminishes the light from their stars.