I think you can only open up when you are ready. Talking about it makes it real and puts it out in open. It can open a can of worms and like you suspected make matters work.
I would try reading and writing first. Find a creative outlet. We build walls for a reason to protect ourselves. It has to be the right person at the right time who gets to see our vulnerabilities.
I wouldnt like a doctor keeping a file on me and all my past.