I've emailed intense stuff, but also I would write a lot and she would take it home and read after session. Only problem with that was I would have to sit on it, and then I would torment myself all week over what I'd say, what she was thinking and facing her again.
I always did manage to face her though even if sometimes I really felt so ashamed I wanted to quit, but I always turned up and she was always very understand, supportive and even grateful at my honesty or vulnerability almost.
What did help for me was that when I would give her these types of writings to take home and read, she would email me that evening, not to highlight anything or go into details, just to say she had read it and reassure me it was ok.