Chancy, your T already knows you are not perfect. She already knows you like to please people and that you hold back truths in therapy because of this. She knows all this, and she still likes and cares about you and listens every week, because she also knows that soon you will feel ready to go deeper and more honest.
She will not judge you or think differently of you. She wants to know what is going on inside you, because she wants to care and help.