I found that meditation really helps with the racing mind. Being mindful of your thoughts and how quickly they race through your head is key to calming a mind that is working in overdrive. Being able to sit back and focus your brain on one thing slows down the mind and helps it adjust itself once more. When my mind is racing, it often gives me a headache. After I practice meditation and mindfulness, however, I find that my racing thoughts have retreated and it feels like the way the sky looks when the day is cloudless.