Whenever someone asks you about yourself do you always know exactly what to say?

She always says " You have to tell me what you are thinking for me to understand," How can I when I don't even understand myself?

Look at her.
Do you see how she smiles, so bright and happy?
Did you know that she is lost inside?
She cries to herself when she is alone.
For some reason she just wants to make everyone happy, even if she is sad
Did you know that she carries so much pain inside?
I bet you'll never notice because she always smiles brightly at you.