I think you should learn to comprehend poems...

Pretty women wonder where my secret lies.
I'm not cute or built to suit a fashion model's size
But when I start to tell them,
They think I'm telling lies.

She ain't talking about anybody but herself...and yes she deserves to write about herself because Maya Angelou is a woman of substance, woman with brain...not unlike some Pretty women who are as much hollow as they are pretty outside. And worse, some might be hollow inside and out....Not all deserves to relate to this beautiful poem of hers....