Took me 6yr of therapy with my T to be able to start really talking about it... It takes time (Don't I know it). I don't believe ppl should be forced into it, you still can work on other things in therapy in the meantime while building the rapport/trust ect.
Talking about it helps, I still don't know exactly why/how- asked my T several times, didn't really get his answers- but it does- again slowly (again too slowly for my comfort but pushing myself gets me nowhere)