I have to agree with QuietMind... she doesn't sound like a very good T. Being invalidating about *anything* seems so far from what a T should be doing. Supporting... curious... helping... caring... maybe some hard honesty from time to time, but invalidating to me feels judgmental. It's telling you that your reality is wrong... and that that just seems so terrible for a T to do.

Has she been helpful with anything? Have you thought about trying someone else?