Do you realize that the only time in our lives when we like to get old is when we're kids? If you're less than 10 years old, you're so excited about aging that you think in fractions.
"How old are you?" "I'm four and a half!" You're never thirty-six and a half. You're four and a half, going on five!
That's the key.
You get into your teens, now they can't hold you back. You jump to the next number, or even a few ahead.
"How old are you?" "I'm gonna be 16!" You could be 13, but hey, you're gonna be 16!
And then the greatest day of your life...you become 21. Even the words sound like a ceremony...YOU BECOME 21. YESSSS!!!