"When you come to the edge of all the light you have and must take a step into the darkness of the unknown, believe that one of two things will happen. Either there will be something solid for you to stand on or you will be taught to fly."
Patrick Overt
 
  
Here are a few suggestions for you:-

1. When a task overwhelms me, I remember that I am fully capable of accomplishing my goals.
 
2. Prayer is available to me whenever I am seeking peace.