"Do you feel any different?" he wondered. I had pondered it already. Did I feel any different? Did I expect to? Do you remember which day you got old? Me either. Every day feels like the one before. Defining points for change tend to be external, not ones where you've noticed your internal change. At least, at the level of days, it's hard to pick one where you can say you're completely different from yesterday.
"No", I replied. "Pretty much the same as last week. And I'm not sure there will come a day where I can say I do, any more than I can tell you when I got old."
Step 25: Have realistic expectations. There's no point in setting yourself up for disappointment.