It can be an acute event, like a breakup, natural disaster, etc. Or a longer process, such as dealing with a loss of loved one, job, health, etc. (Also, no shame in admitting that the struggle continues.) Or just a challenge you set out for yourself, like running a race or putting yourself out of your comfort zone somehow.<p>For me, it was learning to manage a chronic health issue into a sort-of steady state while raising a very rambunctious and energetic boy.