Use your mental powers for good!  I’m not saying that everything you experience is “in your head,” but we do have an incredible ability to shift things towards the positive as well as the negative.  Sadly, I sometimes think I do more negative shifting. Fortunately, God sends me little nudges and a wide variety of chances to go positive.  That said, there are things that are just bad and sad such as the bombing in Manchester.  At those times, I have to remember to get out of my head and pray.