I'm familiar with the typing and erasing, and with struggling to feel safe, wanttoheal. Like KD said, it will all come in its own time. SOmething I have been learning. My T has me slowing down and I want to speed up, but healing takes its own time and for me going more slowly is proving very positive.
Yes, your comments about scribbling make sense. I guess what I did (and this is not to say it is right for anyone else) was to just do it, but to do something as non-threatening as possible. For me that was reading - I feel a bit the same as you about scribbling. When I looked at the picture books I could do it with my adult self, remembering reading to my daughters when they were little, and that fed into reading to my inside littles. Don't know if that makes any sense or is any use. But I hear you.