Please give yourself permission to be your authentic self in any moment, especially therapy. If that means you cry, scream, dance, fart, whatever, it's all good.

Your Therapist will have seen so many people that don't or won't cry, it's really really common.

A lot of peoples therapy can be about finding or working with the inner child, so it would make sense you feel childlike when talking to your T. What would you say to a child that felt stupid and vulnerable for crying in front of you?