we all strive to live a simple peaceful life, it is  easy, what is the answer? Stay out of your head, stay in your heart.  We think to much, we react to what we think, believing what we are thinking is who we really are.   We forget we are the ones putting the thoughts there in the first place.   The mind is a computer, it's a wonderful tool, however, it's not who we are.  When we get out of our head (ego) and stay in our hearts (spiritual)  serenity will be our gift.  We will make healthy  decisions and choices which make for a simple peaceful life.  Living one day at a time, living in the present moment, will give you immediately the peace you are seeking.   Blessings!