With the therapist before I moved it took about a year. I didn't think my past was still bothering me so much. With my current therapist I haven't told her much. She knows somethings though. She asked a question one time I forget about what and I got upset and said "I don't want to talk about that." And she backed off right away and said "ok. We don't have to talk about it right now." Sometimes being pushed is helpful but when a client is clearly distressed about a subject I don't feel like its ok to keep pushing at them about it.