How is your T going to help you if you don't share everything with them? You're doing yourself a disservice, not to mention everybody else, by keeping your feelings to yourself.

Healing takes as long as it takes. There is no yardstick to measure progress with when you're in pain. It's fact, though, that you won't heal if you don't let your T in on what's going on. I strongly encourage you to share with T if no one else.