I know how scary this is! I think so too that you should tell your T, if they are a good T they will deal with it in a professional way that will benefit you. I think you need to face this and work on it, as it is a recurring pattern in your life (And in my own as well). Sometimes we tell ourselves that we'll do it when we're ready or when the time is right but that may never come the best thing I know is to either come right out and say it or write it down in a letter and read it to them.