Sitting working on a math problem, oh it wouldn’t come to me! When I was younger, I would keep pressuring myself to get it. Then one day, I realized (I believe it was in high school) through much frustration when I couldn’t get something solved, I went to sleep. I looked at the same problem in the morning and the ideas became much clearer that next morning. In my adult years, I will take that lesson learned and look forward to new clear problem-solving thoughts in the morning. I am going to sleep on it.