Oh my, I am so sorry. I definitely know what that's like. Sometimes, like LonesomeTonight said, our T doesn't see things the way we do, and their approach isn't the most helpful. (s)he may also have not exactly realized what a big deal it was for you.
But no T in their right mind should ever downplay your feelings like that. And you should never let their response to this very real issue downplay your feelings like that. Because they don't have control over you, you do.
Definitely tell your T how his/her response effected you and what a big deal this really is to you. If (s)he still doesn't get it or seem as supportive as you'd like, don't get too discouraged. No T is perfect.

Good luck, my friend!