Yes, it can be a very challenging and intimidating, frightening even writing out your story. I also have more than one source of childhood trauma including a certain amount of physical and emotional abuse at home which probably left me vulnerable to the SA from others. Write it out and post it when you feel you are able. If you feel it may be triggering to some of the participants here, put a "Trigger Warning" at the top and they'll know not to read it if they are feeling low.
It's your story. It's what happened to you, and it can be very healing to write it out and tell someone the things that have been kept secret for so long.
I wish you well as you think about this, Friend.
"Life's journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sideways, totally worn out, shouting 'Holy Shit! What a ride!'" ~Hunter S. Thompson