A friend suggested to me when I was approaching an age a multiple of ten that it's good to check achievements, but not to hold yourself to any particular moment that they <i>should</i> have been completed by, that ages are milestones, not truly deadlines.<p>From the article's conclusion:
"I went back and recommitted to my “to do list,” but with one major edit: I deleted “by 40” and added “inshallah” (Arabic for God willing.)"