I do not know your circumstances and understand that you are worried about the letter and T's reaction to what is in the letter. I assume the contents of the letter were things that you want to address but find it too hard to bring up. I think you might want to discuss if a letter is/was appropriate at your next appointment. You did say that you are doing some skills training. Perhaps you might want to ask T what skills would help you in the future when you are facing this same situation. Include your concerns about how you have handled the time between appointments in that discussion. Hang in ther you are doing the best that you can AT THIS TIME!