I think it's important to discuss with your T that you feel ridiculed by him/her and that you think he/she is implying you are stupid/deluded/exaggerating. See what he/she says. It's a way of checking your assumptions. If T says "yes", than it may provide a reality check for him/her that he/she is not being therapeutic. If T says "yes", this may also help you decide if you wish to continue therapy with him/her.