In one of his books he gave several tips that stood out that I implement to this day.
One had something to do with putting negative thoughts into your fist and then turning all your positive thoughts and accomplishments into a golden light liquid and pouring them inside your fist.
There was a negative person in my fist that I was losing sleep over and after that exercise I never gave her another thought to this day.
Another tip he gave was to take notes of your physical presence when you are feeling on top of the world.
Take note of how you are breathing, standing/posture your facial expression, how you walk etc.
Then when you are feeling down put your self into that physical state and you just can not feel down anymore!
You would think we would be teaching kids how the brain works and how it can be hacked at a young age.
Have you made an adjustment in your thinking that really had big impact?