The Perfect Contradiction

I am quiet
Yet I'm loud
I am humble 
Yet I'm proud
I'm a good mother
Or a terrible mother
I'm a sad woman
Sometimes a mad woman.
I am Yin
But also Yang
I am snake
But I am man
I am cat
But I am dog
I am lamb
Or I am hog.
I'm the devil
I'm a Queen
I'm a grown up
But a teen.
Someone's baby
Someone's wife
Someone's joy
Yet someone's strife.
Good or bad I am there
I'll never give up
Because I care.
Sometimes I feel like letting go
But I love my family so.
They stick by me thick and thin
My sun, moon and stars
With you I will always win.
Angel of my nightmares
Devil of my dreams
One day this cat
Will get her cream.