I have had this posted on my desk for years and is such a great reminder every time I see it.

I am the master of my Emotions

If I feel depressed I will sing.
If I feel sad I will laugh.
If I feel ill I will double my labor.
If I feel fear I will plunge ahead.
If I feel inferior I will wear new garments.
If I feel uncertain I will raise my voice.
If I feel poverty I will think of wealth to come.
If I feel incompetent I will remember past success.
If I feel insignificant I will remember my goals.

Today I will be the master of my emotions!

– Scroll VI.

[Excerpt from Og Mandino’s “Greatest Salesman in the World”]