Jealousy

True leaders focus on their own career and accomplishments.  Others, including those in competition with you, will also garner accomplishments and awards. 

Rather than wasting energy on jealousy, share their joy of accomplishment.  Seek them out as friends and colleagues.  Learn from them.

Winners associate with winners!

Of all the passions, jealousy is that which exerts the hardest service and pays the bitterest wages.
Charles Cabet Colton

Excessive Pressure

Leaders prevent excessive pressure on both themselves and them members of their team.  Set realistic goals for yourself and your team.  You should be able to see the end in mind the means of achieving it.

If an unrealistic task is given, realize it and break it down to a realistic, seeable, achievable goal.  Expectations set the motivation of the group.  Excessive pressure on members serves no purpose and often kills initiative and creativity at all levels.

We are more often frightened than hurt; our troubles spring more often from fancy than reality.
Seneca.

Humility of a Leader

Don't be caught up in the power and prestige of your position.  Nothing is beneath a true leader.  You must always be willing to help your team and teammates, even in what may seem to be the most mundane tasks.

Remember that you and your fellow co-workers will occasionally make mistakes.  You know that, and they know that.  If you have an arrogant attitude, you can expect no help from your fellow teammates in preventing or correcting your errors or theirs.

To be vain of one's rank or place, is to show that one is below it.
Stanislas I

Leaders Cannot Afford to Lose Their Temper

There is little in the world worthy of losing your temper.  Yet frustrations in every aspect of our personal and professional life are common and can be difficult to deal with. 

As a leader, always try to stay in control.  Discuss problems openly with the people involved.  Be open in thought and firm in your demands, but remain in control.

Superiors, suppliers, peers, customers, teammates, and subordinates will sometimes (often times) be infuriating, but losing your temper will probably only compound the problem instead of solving it.

When angry, count ten before you speak.  If very angry, a hundred.
Thomas Jefferson.