I think her comment was only about his growing up experience and not about whether living with your parents was a good idea or not. And I think T might have been trying to connect with your 2nd thoughts that he did experience some of what you experienced; I think she was kind of rephrasing what you had said.

Our siblings never have the same experiences as we do for so many reasons. Things change is one and even when we experience the same family event, we experience it from our own unique perspective that includes things like gender, age, how we relate it to other personal and unique experiences, etc.

I hope you keep going. It must be really hard to be forced to have a new T after leaving a T you don't want to leave, and as if that wasn't enough, you moved. All those things are stressful and it takes time to adjust and to feel comfortable in new surroundings. It will take time to feel comfortable with your new T, I suspect. It might create a lot of frustration during this time of unfamiliarity. You may wish therapy to be just like your previous therapy. All things familiar begin as something unfamiliar so I hope you will give it more time.