I used to be a child
young, wild, free, and foolish.
But now I'm an adult
and all I have is responsibility.
I used to be a girl
full of laughter and happiness.
and tears that showed up in my emotions.
But now I'm a woman
full of inner mysteries and periods
That men don't and can't understand.
There's no way for me to stop -
The cycle of growing up.
Stacey Gibbs
http://www.poemhunter.com/poem/i-used-to-but-now/