I was taught that reciting memorized prayers is not the best thing to do as you may find yourself reciting them without meaning. The Serenity Prayer, though, expresses how I feel in a much better way than I can ever express. Though there is more to the prayer than the lines below, I relate best to these lines.
Grant to us the serenity of mind to accept that which cannot be changed;
the courage to change that which can be changed,
and the wisdom to know the one from the other,
through Jesus Christ our Lord, Amen.
Right now, I can only trust that I will somehow find that wisdom deep inside me and that when I do, I will have it in me to do what is right.
Photo courtesy of http://www.timlebon.com/