three times.
the idea behind this exercise is to focus your attention on an image or story so that your mind let the worrisome thoughts aside.
find your favorite position in bed, close your eyes and relax. start viewing a scene memory or story that you enjoy and find relaxing.
this technique is very individual, you should find what works best for you testing some choices. for example, a nice vacation you like, an outdoor quiet place, a relaxing activity as a light trail in the wild … the key is to find something that will allow you to focus your attention and let other thoughts aside.
once you find something you like, view 