The process is definitely scary. Just start slow. It's okay that you didn't reveal things like your SI. I did not tell my T about my SI for a long time. Sometimes we keep things hidden in therapy until we are ready to let them out. I have been with my T for 3 1/2 years and sometimes I will say something and he goes, "You never told me that before!!!" I always joke with him and say, "Ummm was I supposed to tell you every single thing in the first session? What would have been the point of subsequent sessions?"