"This command — “be still” — forces us to think on two things: that we are finite, and that God is infinite. That being the case, we need to drop our hands, go limp, relax, and “chill out.” Christian people ought to “come, behold the works of Jehovah,” (v. 8) that we may enjoy a calm confidence in him who gave us his Son.
“Shall he not also with him freely give us all things?” Paul reasoned (Romans 8:32). Psalm 46:10 encourages us to reflect on what God can do in the face of what we are unable to do.
Spiritual serenity, the psalmist admits, ought to be cultivated in spite of the shaking mountains and agitated waters (vv. 2-3; i.e., figures for the difficulties we face in life). This spiritual calm, that God commands, does not come from a lack of troubles; it derives from a steady, deep reflection on the ways God has intervened in history on behalf of his people (cf. Romans 15:4)." -(http://www.christiancourier.com/articles/1245-be-still-and-know-that-i-am-god)
Well, that just about says it all, doesn't it? I've absolutely, positively got to spend time every day focusing on God and resting in his power and provision. Then maybe when my list starts to pop up, instead of being paralyzed by my own shortcomings I can trust in Him and breath easy.