I did this about a year ago, starting with my job. My job (working in a hospital pharmacy) had become so stressful that I was literally coming home in tears every night. I started by cutting back on my hours, from 40+ hours/week to 24, then eventually I switched jobs altogether. After that, I started working on stress in my personal life. I also did research on how to handle stress that you can't get rid of. I started reading for pleasure again, picked my guitar back up, and found my crochet needles. Stress still gets the better of me sometimes, but not like it used to.