No, I don't think young = bad and I haven't got the impression that your T thinks that way. My understanding is that he stopped responding because he felt it does not help your treatment and that's his ultimate goal - to help you the best he can.

How do you get past it? I know only one way - talking about it as many times, as often and as long as things start making sense. This is the essence of the therapy work and it takes as long as it takes.