Many blocked creatives tell themselves they are both "too old" and "too young" to allow themselves to pursue their dreams. Old and dotty, they might try it. Young and foolish, they might try it. In either scenario, being crazy is a prerequisite to creative exploration. We do not want to look crazy, and trying something like that-- whatever it is-- at our age-- whatever it is, would look nuts.
Creativity occurs in the moment, and in the moment we are timeless.