I know this is going to sound silly, but I like to go for walks. I walk and listen to music and sing out loud. I kind of "escape" from what I am thinking, and think that I am in a music video or I am the artist. I know this helps me burn off steam and help straighten my thoughts. Try to do something that will let you just be, walking, riding your bike, exploring. Something that doesn't require you to really make any decisions. I think it is good to let your mind take a break during those times.