When you hit 27 or 28, start "rounding off." Exaggerate. Tell people you're 30 while you still have the secret inner comfort of "but I'm not really." By the time you actually turn 30, you'll have been telling people you were 30 for so long, it won't even be traumatic anymore.
It worked for me, apparently. Today feels just like any other day.
It worked for me, apparently. Today feels just like any other day.