On a piece of paper write 2 questions. Question 1 would be on the first half of the page, question 2 will be on the second half.
Question 1: What am I stresses about?
Describe the stressful situation in couple of sentences.
Question 2: What can I do about it?
List the possible steps you can take to remove the stress.
In the end you will find that there is either no reason for the stress, or that you have a perfect solution to deal with it.