Meditation has been shown in numerous studies to calm the mind, nervous system, and generally improve health. Meditation simply put is being in the present moment. You cannot change what happened in the past, the future has yet to come, the only thing you can influence is ‘the present moment.’ You can find places online that teach meditation, many are free.
Vipassana: is a free resource world-wide to learn meditation. Courses are ten days long. So, if you have a vacation or transition in your life, use it to improve your life. You will learn a skill that is very helpful, and good to have in your health tool kit.