I know that anger where people interrupt and/or obviously don't get it when I do get it out and they "should".

Make sure when you are talking about feelings that you say, "I feel. . ." and then use feeling words. List of Feeling Words Then gently correct people who try to tell you how you should feel or who try to tell you that you do/do not feel the way you feel, etc.

"You shouldn't feel sad, blah, blah, blah"
"That may be true, but I do feel sad."
"Well the Bible says, "A joyful heart makes a cheerful face", it works in reverse too, if you would only smile more you would feel better.
"I do not feel like smiling right now, but thank you for you advice."

Or,

"Maybe I will try that, thank you for your advice." (give them a sickly smile and walk away)

However, often when other people, especially T's negate what we say we feel, they are actually just giving their perception of us and that is "more valuable than gold". Just like another person cannot say we do/do not feel happy, sad, angry, hurt, anxious, etc. we cannot say how we look to them. And, to make matters worse, if they say, "You are not worthless" then, logically, we have to accept that since if we are of worth to them, then we cannot be worthless. If we insist on being worthless, we are calling them liars. Rock and a hard place.

If I were you, when your T or someone says, "You are not ______" take the word and ask them to give you concrete examples of how they see you as not ______. I have turned my thinking and perceptions around many times by taking the word of someone I love and/or trust and just arbitrarily deciding I'll agree with that view (take it on faith :-) instead of my own negative one. Over time, I start looking for the new actions that show I am not the negative but the positive instead.