How long have you been seeing this particular T? It definitely isn't your fault and you're not a bad client, so don't think that. But it's your T's job to make you comfortable and find a way to get you to open up. It's always possible that she's just not the right one for you, but over time you should get more comfortable and be able to open up more. The one thing I would suggest is that when she asks you a certain question and you're feeling overwhelmed by it, I would simply ask her to rephrase or go into more depth on the question and that might help you answer it better. Good luck! Hope it gets better for you soon.