So now you know more about the things you want in life
And T can help you get there. Let her know how you feel. It will help her know you better.
You are young and you have your whole life ahead of you. And you can have these things too! Knowing what you want is where you begin, so knowing now more about what you want means you can work toward having those things.
Yes I am often jealous of T's seeming ease with dealing with life, with what she knows, with her academic life, even her dress. Maybe jealous is a place to start too, and in saying we want what T 'has' or we want to be like T...it's a way of saying that we want good things for ourselves too.

.. Responding to the response about 'Why your T nees therapy'...For many therapists, it is required that they enter into therapy. Therapy is a process of getting to know yourself. So therapy helps a therapist know themselves well, useful for how they respond to us, for exploring their counter-transference, etc. A person can enter into therapy who has no symptoms of mental distress, but who wants to learn more about themselves. It's a process of discovery and enlightenment.